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A sentence is a grammatically complete unit of language that expresses a thought, conveys a complete meaning, and can stand independently. For a group of words to qualify as a sentence, it must contain at minimum a subject (who or what the sentence is about) and a predicate (what the subject does, is, or has). The systematic arrangement of these components — and the rules governing their arrangement — is called sentence structure.
📄 Download PDFA sentence is a grammatically complete unit of language that expresses a thought, conveys a complete meaning, and can stand independently. For a group of words to qualify as a sentence, it must contain at minimum a subject (who or what the sentence is about) and a predicate (what the subject does, is, or has). The systematic arrangement of these components — and the rules governing their arrangement — is called sentence structure.
Sentence structure is the backbone of all written and spoken English. A mastery of sentence structure enables writers to communicate with precision, avoid ambiguity, and control meaning at the highest level.
Every English sentence belongs to exactly one of four structural categories:
| Type | Independent Clauses | Subordinate Clauses | Example |
|---|---|---|---|
| Simple | 1 | 0 | The dog barked. |
| Compound | 2 or more | 0 | The dog barked, and the cat fled. |
| Complex | 1 | 1 or more | Although it rained, we played. |
| Compound-Complex | 2 or more | 1 or more | She sang while he danced, and they bowed. |
| Type | Function | Punctuation | Example |
|---|---|---|---|
| Declarative | States a fact or opinion | Period (.) | Water boils at 100°C. |
| Interrogative | Asks a question | Question mark (?) | Are you ready? |
| Imperative | Gives a command or request | Period or (!) | Close the door. |
| Exclamatory | Expresses strong emotion | Exclamation mark (!) | What a terrible loss! |
A clause is a group of words containing both a subject and a predicate. There are two fundamental kinds:
Dependent clauses are further classified by their function:
| Clause Type | Function | Introduced By | Example |
|---|---|---|---|
| Noun clause | Acts as subject, object, or complement | that, what, whether, who, how | What she said surprised everyone. |
| Adjective (Relative) clause | Modifies a noun or pronoun | who, whom, which, that, whose | The man who called is my uncle. |
| Adverb clause | Modifies a verb, adjective, or adverb | because, although, when, if, unless | She left before he arrived. |
A phrase is a group of related words that lacks either a subject, a predicate, or both. Unlike clauses, phrases cannot stand alone as sentences.
| Phrase Type | Core Element | Function | Example |
|---|---|---|---|
| Noun phrase | Noun + modifiers | Subject, object, complement | The old, ruined castle stood tall. |
| Verb phrase | Main verb + auxiliaries | Predicate | She has been working since dawn. |
| Prepositional phrase | Preposition + noun phrase | Adjective or adverb modifier | The book on the shelf is mine. |
| Participial phrase | Participle + complements | Adjective modifier | Running at full speed, he tripped. |
| Gerund phrase | Gerund + complements | Noun function | Swimming every morning improves health. |
| Infinitive phrase | Infinitive + complements | Noun, adjective, or adverb | To win the race was her goal. |
| Absolute phrase | Noun + participle | Sentence modifier | Weather permitting, we will travel. |
Ex. 1: ✔ She laughed. [Subject: She; Verb: laughed — complete sentence]
Ex. 2: ✘ Running through the park every morning. [No subject; no finite verb — fragment]
Ex. 3: ✔ Run! [Implied subject 'You'; Verb: run — imperative sentence, grammatically complete]
Ex. 1: ✘ Because the train was delayed. [Subordinate clause alone — fragment]
Ex. 2: ✔ Because the train was delayed, we missed the meeting. [Dependent clause + independent clause = complete sentence]
Ex. 3: ✘ The ancient, moss-covered bridge over the river near the village. [Noun phrase, no predicate — fragment]
Ex. 1: ✘ She studied hard she failed the exam. [Two fused independent clauses — run-on]
Ex. 2: ✔ She studied hard; however, she failed the exam. [Semicolon + conjunctive adverb — correct]
Ex. 3: ✔ Although she studied hard, she failed the exam. [Subordinating conjunction — correct]
Ex. 1: ✘ It was raining, we stayed inside. [Comma splice]
Ex. 2: ✔ It was raining, so we stayed inside. [Comma + coordinating conjunction 'so' — correct]
Ex. 3: ✔ It was raining. We stayed inside. [Two separate sentences — correct]
Ex. 1: ✔ The results were poor, but the team remained motivated. [Comma before 'but' joining two independent clauses]
Ex. 2: ✔ She ordered coffee and a sandwich. [No comma — 'and' joins two noun phrases, not two clauses]
Ex. 3: ✘ The report was thorough but, it lacked a conclusion. [Incorrectly placed comma after 'but']
Ex. 1: ✔ When the alarm rang, she woke up immediately. [Dependent clause first — comma used]
Ex. 2: ✔ She woke up immediately when the alarm rang. [Main clause first — no comma needed]
Ex. 3: ✘ She woke up immediately, when the alarm rang. [Incorrect comma after main clause]
Ex. 1: ✘ She likes swimming, to run, and cycling. [Mixed forms: gerund, infinitive, gerund — not parallel]
Ex. 2: ✔ She likes swimming, running, and cycling. [All gerunds — parallel]
Ex. 3: ✘ He is intelligent, hardworking, and shows creativity. [Two adjectives + verb phrase — not parallel]
Ex. 1: ✘ She almost drove her children to school every day. [Implies she almost did it — not that it was nearly every day]
Ex. 2: ✔ She drove her children to school almost every day. [Modifier 'almost' correctly placed next to 'every day']
Ex. 3: ✘ The surgeon operated on the patient with great skill and a broken leg. [Was the patient's leg broken, or the surgeon's?]
Ex. 1: ✘ Walking to the station, the rain began. [Dangling — 'the rain' was not walking to the station]
Ex. 2: ✔ Walking to the station, she was caught in the rain. [Correct — 'she' was walking]
Ex. 3: ✘ Having finished the assignment, the TV was switched on. [The TV did not finish the assignment]
Ex. 1: ✔ The book that I borrowed was excellent. [Restrictive — no comma; 'that' correct]
Ex. 2: ✔ My car, which is quite old, needs repairs. [Non-restrictive — commas; 'which' correct]
Ex. 3: ✘ My car, that is quite old, needs repairs. [Incorrect — 'that' cannot introduce a non-restrictive clause set off by commas]
Ex. 1: ✘ The quality of the products are poor. [Subject is 'quality' — singular; verb should be 'is']
Ex. 2: ✔ The quality of the products is poor. [Singular subject 'quality' — singular verb 'is']
Ex. 3: ✔ Each of the students was given a certificate. ['Each' is always singular]
Ex. 1: ✔ Not only did she work hard, but she also produced excellent results. [Parallel clauses]
Ex. 2: ✘ Either the manager or the employees is responsible. [Subject nearer to verb is plural 'employees' — verb should be 'are']
Ex. 3: ✔ Neither the teacher nor the students were informed. [Nearer subject 'students' — plural verb 'were']
Ex. 1: ✔ My brother, a doctor, lives in Mumbai. [Non-restrictive appositive — set off by commas]
Ex. 2: ✔ The poet Keats died young. [Restrictive appositive — no comma; identifies which poet]
Ex. 3: ✘ My brother a doctor lives in Mumbai. [Missing commas around non-restrictive appositive]
Ex. 1: ✔ Never have I seen such courage. [Inversion after 'Never' — auxiliary 'have' before subject 'I']
Ex. 2: ✘ Never I have seen such courage. [Incorrect — no inversion]
Ex. 3: ✔ Rarely does she complain. [Inversion after 'Rarely']
Ex. 1: ✔ What she said was completely false. [Noun clause 'What she said' is the subject — singular verb 'was']
Ex. 2: ✘ What she said were completely false. [Incorrect plural verb]
Ex. 3: ✔ That they survived the ordeal is a miracle. [Noun clause as subject — singular verb 'is']
| ✔ CORRECT | ✘ INCORRECT |
|---|---|
| Because she was late, she missed the bus. | Because she was late. She missed the bus. |
| He runs fast, and he jumps high. | He runs fast, he jumps high. |
| Swimming is good exercise. | To swim is good exercise. (inconsistent in a parallel list) |
| The dog that bit him was captured. | The dog which bit him was captured. (restrictive — should use 'that') |
| Never have I witnessed such bravery. | Never I have witnessed such bravery. |
| The committee has reached a decision. | The committee have reached a decision. (British usage aside, in formal tests: singular) |
| Having read the notice, she left quietly. | Having read the notice, the office was left quietly. |
| She not only sings but also dances. | She not only sings but also is dancing. |
| Either he or his friends are coming. | Either he or his friends is coming. |
| My sister, an architect, designed this. | My sister an architect, designed this. |
A consolidated quick-revision reference of all 15 rules covered in this document.
This section contains all 60 questions organised into 4 categories. Answers and explanations are provided in Part 2.
Skill tested: You must identify the grammatical error in each sentence, name the type of error, and write the corrected version. Demands precision in detecting structural flaws.
Skill tested: Selecting the grammatically correct and precise word from options designed to look plausible. Demands understanding of structural rules, not just vocabulary.
Skill tested: Identifying the single structurally flawless sentence from four options. Demands simultaneous awareness of multiple rules and the ability to eliminate near-misses.
Skill tested: Deep structural analysis, clause identification, competing rule resolution, and critical rewriting. Demands the highest level of grammatical reasoning and synthesis.
Detailed explanations for all 60 questions, organised by category. For MCQs, each wrong option is explained individually.
Error type: Dangling modifier.
The introductory participial phrase 'Roaming through the dense forest for hours' has an implied subject — whoever was roaming. However, the main clause's grammatical subject is 'the hidden waterfall', which cannot roam. The modifier therefore dangles.
Corrected: Roaming through the dense forest for hours, they finally discovered the hidden waterfall.
Error type: Subject-verb agreement with 'neither…nor'.
With 'neither…nor', the verb agrees with the subject nearer to it. The nearer subject is 'the teachers' (plural), so the verb must be 'were', not 'was'.
Corrected: Neither the principal nor the teachers were informed about the policy change.
Error type: Subject-verb agreement in a 'one of those who' construction.
In the construction 'one of those [plural noun] who', the relative clause 'who…' refers to the plural noun (managers), not to 'one'. Therefore, the verb in the relative clause must be plural: 'insist', not 'insists'.
Corrected: She is one of those managers who insist on perfection from everyone.
Error type: Pronoun redundancy (resumptive pronoun error).
The subject of the main verb 'was well-received' is already established by the relative clause 'that the committee…submitted'. The pronoun 'it' after 'submitted' is redundant and creates a structural error. 'that' serves as both the object of 'submitted' and the relative pronoun connecting the clause.
Corrected: The report that the committee, which had been working overtime, submitted was well-received.
Error type: Inversion after 'not only' when used at the start of a clause.
When 'not only' begins a clause (and is not used mid-sentence), subject-auxiliary inversion is required. The auxiliary verb must precede the subject.
Corrected: Not only was he late, but he also forgot to bring the documents.
Error type: Subject-verb agreement with a collective noun.
'Team' is a collective noun used as a single unit. In formal written English (and in most standardised tests), collective nouns take a singular verb. The phrase 'of researchers' is a prepositional modifier and does not affect agreement.
Corrected: The team of researchers has published their findings in three international journals.
Error type: Incorrect conjunction after 'Hardly'. Missing inversion.
'Hardly…when' is the correct correlative pair. After 'Hardly' at the start of a clause, subject-auxiliary inversion is required. The sentence also needs the auxiliary to precede the subject.
Corrected: Hardly had the ceremony started when the lights went out.
Error type: Redundant pronoun in a relative clause.
The relative pronoun 'that' already refers to 'person' and functions as the object of the preposition 'on'. Adding 'him' after 'on' creates a double object — a common but incorrect construction.
Corrected: He is the sort of person that you can always depend on in a crisis. (OR: …on whom you can always depend…)
Error type: Subject-verb agreement with a noun clause as subject.
'What makes this novel unique' is a noun clause functioning as the subject of the main verb. A noun clause is treated as a singular unit, requiring the singular verb 'is', not 'are'.
Corrected: What makes this novel unique is the non-linear narrative and its psychological depth.
Error type: Dangling modifier.
'Running the marathon' implies the runner as the subject. But the main clause's subject is 'dehydration', which cannot run a marathon. The modifier dangles.
Corrected: Running the marathon, he began to experience dehydration after mile eighteen.
Error type: Parallel structure violation with 'not only…but also'.
'Not only edited' (simple past) must be parallel with 'but also suggested' (simple past) — not 'was suggesting' (past continuous). Both elements must share the same grammatical form.
Corrected: She not only edited the draft but also suggested several structural changes.
Error type: Subject-verb agreement with a parenthetical phrase.
'Along with all the producers' is a parenthetical phrase, not part of the compound subject. The true grammatical subject is 'The director' (singular). The verb must be 'was', not 'were'.
Corrected: The director, along with all the producers, was present at the premiere.
Error type: Pronoun case error (subjective vs. objective).
After the linking verb 'was', the complement must be in the subjective case. 'It was she…' is the grammatically correct form. 'her' is the objective case, incorrect as a subject complement.
Corrected: It was she, not her colleagues, who submitted the winning proposal.
Error type: Adverb vs. adjective confusion.
'Quiet' is an adjective; it cannot modify the verb 'spoke'. The adverb 'quietly' is required to modify the verb.
Corrected: He spoke so quietly that nobody in the back row could hear him.
Error type: Dangling modifier.
'Having been denied admission' implies the person who was denied. However, the main clause's subject is 'the university's appeal process', which was not denied admission. The human subject needs to appear in the main clause.
Corrected: Having been denied admission, he saw the university's appeal process as his only option.
Correct answer: (a) The harder.
This is a correlative comparative structure: 'The harder… the better…'. Both parts require the definite article 'the' followed by a comparative adjective. (b) 'more hard' is non-standard (harder is the correct comparative). (c) 'Harder' alone omits the required article. (d) 'More harder' is a double comparative — incorrect.
Correct answer: (b) have.
In 'one of the few [plural noun] who', the relative clause 'who…' refers back to the plural noun 'politicians', not to 'one'. Therefore, the verb is plural: 'have'. (a) 'has' incorrectly treats the antecedent as 'one'. (c) 'had' introduces an unnecessary past tense shift. (d) 'having' creates a dangling participial structure.
Correct answer: (c) be.
After verbs of recommendation, suggestion, or necessity (recommend, suggest, insist, demand, require), the subjunctive mood requires the base form of the verb: 'be', not 'is', 'was', or 'were'. This is the mandative subjunctive. (a) 'is' and (b) 'was' are indicative. (d) 'were' is the past subjunctive, used in hypothetical conditions, not mandative clauses.
Correct answer: (b) chairing.
After prepositions ('on'), the gerund (-ing form) must be used, not the infinitive. 'Insisted on' requires 'chairing'. (a) 'to chair' is an infinitive — wrong after a preposition. (c) 'chair' is the bare infinitive — also wrong here. (d) 'to chairing' is grammatically impossible.
Correct answer: (c) when.
'Scarcely…when' is the fixed correlative pair, just as 'hardly…when' and 'no sooner…than'. (a) 'than' is used with 'no sooner', not 'scarcely'. (b) 'then' is an adverb of sequence, not a subordinating conjunction. (d) 'that' does not collocate with 'scarcely' in this structure.
Correct answer: (b) has been.
'Data' is treated as a singular uncountable noun in formal written English when it refers to a body of information (as opposed to individual data points). The verb must be singular: 'has been'. (a) 'were' and (c) 'have been' are plural. (d) 'was' would also be singular but the sentence describes a completed-to-present process, making the present perfect 'has been' most precise.
Correct answer: (b) she.
After the linking verb 'was' in an it-cleft sentence ('It was ___ who…'), the complement must be in the subjective case: 'she'. (a) 'her' is objective. (c) 'hers' is a possessive pronoun. (d) 'herself' is reflexive/emphatic — incorrect here.
Correct answer: (a) more fluently.
Since the comparison involves two parties ('any other student'), the comparative form is required, not the superlative. 'Fluently' is an adverb and takes 'more' in its comparative form. (b) 'most fluently' is a superlative — incorrect in a two-item comparison. (c) 'more fluent' uses the adjective form to modify 'speaks' — wrong. (d) 'fluenter' is not a valid English word.
Correct answer: (a) Because of.
'Because of' is a prepositional phrase followed by a noun phrase ('the heavy snowfall'). (b) 'Because' is a conjunction and must be followed by a full clause (subject + verb). (c) 'Due to that' is non-standard. (d) 'Owing that' is grammatically incorrect; the correct form would be 'owing to' + noun phrase.
Correct answer: (b) was.
'News' is an uncountable singular noun despite its plural-seeming form. It always takes a singular verb. (a) 'were' and (c) 'are' are plural. (d) 'have been' is plural and also shifts unnecessarily to the present perfect.
Correct answer: (c) is.
'Neither of the solutions' — 'neither' as a pronoun is grammatically singular. Even with a prepositional phrase following it, the verb remains singular. (a) 'are' and (b) 'were' are plural. (d) 'have been' is plural.
Correct answer: (c) whose.
The blank precedes a noun ('research') and indicates possession. 'Whose' is the possessive relative pronoun for both persons and things. (a) 'who' is subjective. (b) 'whom' is objective. (d) 'that' cannot express possession.
Correct answer: (c) hiking / studying.
After 'spent his holiday', gerunds are required. Both activities must be in parallel gerund form: 'hiking' and 'studying'. (a) and (b) mix gerund and infinitive forms — parallel structure violation. (d) uses bare infinitives — incorrect after 'spent time'.
Correct answer: (b) follow.
After 'It is essential that', the mandative subjunctive requires the base form of the verb: 'follow', regardless of the subject. (a) 'follows' is the indicative third-person singular. (c) 'followed' is past tense indicative. (d) 'is following' is a continuous form — all are incorrect in subjunctive contexts.
Correct answer: (c) to silence.
After 'asked [object]', the infinitive is required: 'asked us to silence'. (a) 'that we silence' is also grammatically possible but the more natural and preferred form is the to-infinitive. Among the given options, (c) is the clearest and most standard. (b) 'silencing' (gerund) cannot follow 'asked us'. (d) 'silence' (bare infinitive) is incorrect after 'asked'.
Correct answer: (b) Running for the bus, he lost his hat.
(a) 'his hat blew off' — the hat cannot run for a bus; dangling modifier. (b) 'he' correctly identifies the person running — no dangling modifier. (c) 'the hat of his blew off' — both the dangling modifier error and an unnatural possessive construction. (d) 'his hat blew off while running for the bus' — 'running' still has no explicit subject and is ambiguous.
Correct answer: (c) She is wiser than I in this matter.
In formal English, the pronoun after 'than' in a comparison is in the subjective case when it is the subject of an elliptical clause: 'than I [am]'. (a) 'than me' is widely used informally but 'than I' is formally correct. (b) 'more wiser' is a double comparative — incorrect. (d) 'the wiser' introduces a definite article incorrectly into a simple comparison.
Correct answer: (b) The reason for his failure is that he did not prepare.
(a) 'The reason is because' is redundant; 'because' already means 'for the reason that'. The correct construction is 'the reason is that'. (b) Uses 'that' correctly. (c) 'is because of not preparing' is non-standard. (d) 'The reason that…is because' combines both errors.
Correct answer: (c) No sooner had the match begun than the rain started.
'No sooner…than' is the fixed correlative pair. Inversion after 'No sooner' is mandatory: the auxiliary 'had' must precede the subject. (a) and (b) use 'when' and 'then' respectively — incorrect collocations with 'no sooner'. (d) lacks inversion: 'No sooner the match began' is wrong.
Correct answer: (b) The manager told the staff that the meeting would be postponed.
In reported speech, when the reporting verb is past ('told'), the reported verb must also shift to past tense: 'would be', not 'will be'. (a) 'will be' violates sequence of tenses. (c) omits 'that' — acceptable informally but (b) is the more complete and precise construction. (d) 'told to the staff' — 'tell' does not take 'to' before an indirect object.
Correct answer: (c) Not only is he the best candidate, but he is also highly qualified.
(a) 'additionally being' introduces a dangling participial construction. (b) is grammatically correct but does not use 'not only…but also' — which (c) does, with correct inversion after 'not only'. (d) 'having high qualifications' breaks parallel structure with 'is the best candidate'; the 'but also' element must parallel the 'not only' element in form.
Correct answer: (b) Each of the boys must carry his own luggage.
'Each' is a singular pronoun and requires a singular verb and singular pronoun reference. In formal grammar, the singular generic is 'his'. (a) 'their' is plural — incorrect in formal agreement with 'each'. (c) 'its' refers to non-persons — incorrect for boys. (d) 'must carrying' is not a valid verb form.
Correct answer: (a) Whoever comes first will get the prize.
'Whoever' acts as the subject of the clause 'Whoever comes first', so the subjective form is correct. (b) 'Whomever' is objective — incorrect when the pronoun is the clause's subject. (c) 'Whoever that comes' adds a redundant 'that'. (d) 'Who comes first' is also subjective but less standard as the subject of a noun clause; 'whoever' is the preferred indefinite relative pronoun.
Correct answer: (c) I prefer to work alone rather than to work in a group.
'Prefer to do X rather than to do Y' — both elements must be parallel. (c) correctly pairs two infinitives. (a) mixes 'to work' with 'working' — parallel structure violation. (b) mixes 'working' with 'work' — also not parallel in formal usage. (d) 'instead to work' is grammatically impossible.
Correct answer: (b) Despite the poor weather, the festival continued.
'Despite' is a preposition and must be directly followed by a noun phrase — never by 'of'. (a) 'Despite of' is always incorrect. (c) 'Despite of that' is doubly wrong. (d) 'In spite' alone is incomplete; the correct form is 'In spite of'.
Correct answer: (b) Neither the CEO nor the board members were present.
With 'neither…nor', the verb agrees with the nearer subject. The nearer subject is 'the board members' (plural), so 'were' is correct. (a) 'was' incorrectly agrees with the farther singular subject. (c) 'has been' is singular. (d) 'neither…or' is grammatically incorrect; the correct correlative is 'neither…nor'.
Correct answer: (b) The article that was published last week caused a controversy.
This is a restrictive relative clause (identifying which article), so 'that' is used with no commas. (a) 'The article, that…' — 'that' cannot introduce a non-restrictive clause set off by commas. (c) 'which' in a restrictive clause (no commas) is acceptable in British English but (b) is the formally preferred standard. (d) 'The article, which was published last week caused' — the second comma is missing, creating a structural error.
Correct answer: (b) Having submitted the report, she was pleased by the director's praise.
(a) 'the praise…pleased her' — the participial phrase's implied subject should be the human who submitted; 'the praise' did not submit the report. (b) 'she' correctly matches the implied subject of 'Having submitted'. (c) 'the director praised her, having submitted the report' — implies the director submitted the report. (d) Ambiguous — 'having submitted' appears to modify 'the director'.
Correct answer: (b) The number of errors in the document is unacceptable.
'The number of' takes a singular verb because the head noun is 'number', which is singular. 'A number of' takes a plural verb because it functions as a quantifier meaning 'several'. (a) 'are' is plural — incorrect with 'The number'. (c) 'A number of errors is' — incorrect; 'a number of' should take 'are'. (d) 'have been' is plural — incorrect.
Correct answer: (b) Scarcely had she finished speaking when the objections began.
After 'scarcely' at the start of a clause, subject-auxiliary inversion is mandatory. The correct correlative is 'scarcely…when'. (a) 'Scarcely she had finished' — missing inversion. (c) 'than' is used with 'no sooner', not 'scarcely'. (d) 'Scarcely she finished' — no inversion; wrong tense usage.
Sentence: 'Although the board rejected the proposal that she had submitted, she believed that persistence would eventually bring success.'
Clause Analysis:
1. 'she believed that persistence would eventually bring success' — INDEPENDENT CLAUSE (main clause). Subject: she; Verb: believed.
2. 'Although the board rejected the proposal that she had submitted' — DEPENDENT ADVERB CLAUSE introduced by 'Although'. It modifies the main verb 'believed' and cannot stand alone.
3. 'that she had submitted' — DEPENDENT ADJECTIVE (RELATIVE) CLAUSE. It modifies the noun 'proposal'. Relative pronoun 'that' acts as the object of 'submitted'.
4. 'that persistence would eventually bring success' — DEPENDENT NOUN CLAUSE. It functions as the object of 'believed'. Introduced by 'that'.
Total: 1 independent clause + 3 dependent clauses = COMPLEX sentence.
Original: 'Running the project single-handedly, the deadline were met despite of numerous setbacks.'
Error 1 — Dangling modifier: 'Running the project single-handedly' implies a human runner. However, the main clause's subject is 'the deadline', which cannot run a project. The modifier dangles.
Error 2 — Incorrect preposition: 'despite of' is always incorrect. 'Despite' is a preposition and must NOT be followed by 'of'. The correct form is 'despite' + noun phrase OR 'in spite of' + noun phrase.
Corrected: Running the project single-handedly, she met the deadline despite numerous setbacks.
Sentence: 'The police were told to stop drinking in the park.'
Source of ambiguity: The modifier 'drinking in the park' can attach to two different elements, creating two distinct meanings.
Reading 1: The police were told to stop [people who were] drinking in the park. [The police's job was to prevent public drinking.]
Reading 2: The police themselves were told to stop drinking in the park. [The police were the ones drinking.]
Unambiguous rewrite for Reading 1: The police were told to stop people from drinking in the park.
Unambiguous rewrite for Reading 2: The police officers were told that they must stop drinking in the park.
Original paragraph: 'He arrived late. Because the traffic was terrible. He apologised to everyone, the meeting had already started. Being a professional, punctuality should always be maintained. He vowed to never again be late, or arriving unprepared.'
Error 1 (Sentence 2): 'Because the traffic was terrible.' — FRAGMENT. A subordinate clause punctuated as a full sentence.
Error 2 (Sentence 3): 'He apologised to everyone, the meeting had already started.' — COMMA SPLICE. Two independent clauses joined by only a comma.
Error 3 (Sentence 4): 'Being a professional, punctuality should always be maintained.' — DANGLING MODIFIER. 'Being a professional' implies a person; the main subject is 'punctuality', which is not a professional.
Error 4 (Sentence 4): PASSIVE VOICE creating structural awkwardness — contributes to the dangling modifier.
Error 5 (Sentence 5): 'to never again be late, or arriving unprepared' — PARALLEL STRUCTURE VIOLATION. 'to be late' (infinitive) is not parallel with 'arriving' (gerund).
Corrected paragraph: He arrived late because the traffic was terrible. He apologised to everyone; however, the meeting had already started. Being a professional, he knew that punctuality should always be maintained. He vowed never to be late or to arrive unprepared again.
Original: 'Her hobbies include painting watercolours, to play chess online, and she enjoys long-distance cycling.'
Violation: The sentence mixes a gerund phrase ('painting watercolours'), an infinitive phrase ('to play chess online'), and a full clause ('she enjoys long-distance cycling'). All three joined elements must be in the same grammatical form.
All gerunds: Her hobbies include painting watercolours, playing chess online, and cycling long distances.
All infinitives: Her hobbies are to paint watercolours, to play chess online, and to cycle long distances. (Note: After 'include', gerunds are strongly preferred in natural English, but the exercise demands structural parallel forms.)
All noun phrases: Her hobbies are watercolour painting, online chess, and long-distance cycling.
Original: 'The bridge, that connects the two neighbourhoods which had been built in the 1920s was declared unsafe.'
Error 1 — Relative clause word choice: The clause 'that connects the two neighbourhoods' is set off by a comma, making it non-restrictive. 'That' cannot introduce a non-restrictive clause. 'Which' must be used.
Error 2 — Punctuation: The non-restrictive clause 'which connects the two neighbourhoods' requires commas on BOTH sides. The sentence opens with a comma before the clause but closes without one before 'which had been built'.
Additionally, the second relative clause 'which had been built in the 1920s' should clearly attach to 'the bridge', not 'the neighbourhoods'. Restructuring improves clarity.
Corrected: The bridge, which connects the two neighbourhoods and which had been built in the 1920s, was declared unsafe.
Sentence A: 'The teachers who came late were fined.'
Sentence B: 'The teachers, who came late, were fined.'
Structural feature creating the difference: The presence or absence of commas around the relative clause signals whether it is RESTRICTIVE or NON-RESTRICTIVE.
Sentence A — Restrictive relative clause (no commas): 'who came late' is essential to identify which teachers. It implies that only some teachers came late — only those were fined. The other teachers (who were on time) were not fined.
Sentence B — Non-restrictive relative clause (commas): 'who came late' is additional, non-essential information about ALL the teachers. It implies that all the teachers came late and all were fined. The clause merely adds a fact about all of them.
In short: A restricts the group; B describes the entire group.
Original: 'She nearly spent three hours correcting and to improve the report before submitting it.'
Error 1 — Misplaced modifier: 'nearly' is placed before 'spent', suggesting she almost spent time (but didn't). The intended meaning is that she spent close to three hours. 'Nearly' should modify 'three hours', not 'spent'.
Error 2 — Parallel structure violation: 'correcting and to improve' mixes a gerund ('correcting') with an infinitive ('to improve'). Both must be in the same form.
Corrected: She spent nearly three hours correcting and improving the report before submitting it.
Original sentences: (1) The scientist made a discovery. (2) The discovery was groundbreaking. (3) She had been researching for a decade. (4) Her colleagues were sceptical at first.
Combined compound-complex sentence: Although her colleagues were initially sceptical, the scientist who had been researching for a decade made a groundbreaking discovery that changed everything.
Clause identification in the combined sentence:
1. 'the scientist…made a groundbreaking discovery' — INDEPENDENT CLAUSE (main clause).
2. 'Although her colleagues were initially sceptical' — DEPENDENT ADVERB CLAUSE (subordinating conjunction: Although).
3. 'who had been researching for a decade' — DEPENDENT ADJECTIVE CLAUSE (modifies 'the scientist').
Structure: 2 independent clauses are not strictly required for compound-complex — one main clause with multiple subordinate clauses suffices if we add: …the scientist, who had been researching for a decade, made a groundbreaking discovery, and her colleagues, who had been sceptical at first, were ultimately convinced. This version has 2 independent clauses + 2 dependent clauses = compound-complex.
Sentence: 'I saw the man with the telescope.'
This sentence is a classic example of a PREPOSITIONAL PHRASE ATTACHMENT AMBIGUITY. The phrase 'with the telescope' can logically attach to two different elements:
Reading 1: 'I [using the telescope] saw the man.' — 'with the telescope' modifies the verb 'saw'; the telescope was the instrument of seeing.
Reading 2: 'I saw the man [who had the telescope].' — 'with the telescope' modifies the noun phrase 'the man'; the man was carrying a telescope.
Grammatically dominant reading: Reading 2 is typically dominant in natural speech because modifiers tend to attach to the nearest preceding noun phrase ('the man'). This is called the principle of minimal attachment / late closure in psycholinguistics.
Disambiguated for Reading 1: Using the telescope, I saw the man. OR: I saw the man through the telescope.
Disambiguated for Reading 2: I saw the man who had the telescope. OR: I saw the man carrying the telescope.
Original: 'Despite his efforts, the project failed, and the team was disappointed.'
SIMPLE: Despite all his efforts, the project failed, leaving the team disappointed. [One independent clause with a participial phrase]
COMPOUND: The project failed despite his efforts, and the team was deeply disappointed. [Two independent clauses joined by 'and']
COMPLEX: Although he made every effort, the project still failed. [One independent clause + one dependent adverb clause — the team's disappointment is incorporated as implication or can be added as a modifier]
COMPOUND-COMPLEX: Although he made every effort, the project failed, and the team was left deeply disappointed. [Dependent adverb clause + two independent clauses]
Sentence: 'Not until she resigned did people realise how valuable she was to the organisation.'
The inversion is CORRECT. Here is the rule: When a sentence begins with a negative or restrictive adverbial expression such as 'not until', 'not only', 'never', 'hardly', 'seldom', 'scarcely', or 'only when', subject-auxiliary inversion is required in the main clause.
Structure breakdown: 'Not until she resigned' — negative adverbial phrase (contains a subordinate clause 'she resigned'). 'did people realise' — inverted main clause: auxiliary 'did' precedes subject 'people'. 'how valuable she was to the organisation' — noun clause, object of 'realise'.
The inversion applies to the MAIN clause, not to the subordinate clause embedded within 'not until she resigned' — and that is handled correctly here. No correction is needed. This is a grammatically exemplary sentence.
Original: 'The board approved the merger, which surprised many investors, which had been opposed for months.'
Structural issue: The second 'which' clause ('which had been opposed for months') has an unclear antecedent. It could refer to: (1) the merger — which was opposed for months, or (2) the board's decision to approve — which surprised investors for months. The stacked 'which' clauses create a vague, confusing reference.
Additionally, two successive 'which' non-restrictive clauses create a structurally cluttered sentence that is difficult to parse.
Rewritten (if 'which had been opposed' refers to the merger): The board approved the merger — which had been opposed for months — a decision that surprised many investors.
Rewritten (if 'which surprised' refers to the approval of a long-opposed merger): Although the merger had been opposed for months, the board's decision to approve it surprised many investors.
Original: 'The findings of the decade-long research conducted by teams across three continents suggests that the theory is flawed.'
Hidden agreement error: The verb 'suggests' is singular. The true grammatical subject is 'The findings' — PLURAL. The long intervening prepositional phrase ('of the decade-long research conducted by teams across three continents') distracted attention from the plural head noun.
'Research' in the prepositional phrase 'of the research' is NOT the subject — it is the object of the preposition 'of'. The subject is always the noun that performs or is described by the main verb.
Rule violated: Rule 11 — the verb must agree with the grammatical subject, not with a noun in an intervening phrase.
Corrected: The findings of the decade-long research conducted by teams across three continents suggest that the theory is flawed.
The two sentences: (A) 'Who did you speak to at the conference?' vs. (B) 'To whom did you speak at the conference?'
Framework 1 — Prescriptive Traditional Grammar: (B) is the strictly correct form. 'Whom' is the objective case pronoun, and since it functions as the object of the preposition 'to', the objective case is required. Additionally, ending a sentence with a preposition ('speak to') is traditionally discouraged — the preposition should precede 'whom'. Under this framework, (A) is incorrect on two counts: wrong pronoun case and a stranded preposition.
Framework 2 — Descriptive / Usage-Based Modern Grammar: (A) is natural, fluent, and entirely acceptable. Modern linguists (following Fowler, Quirk, and Huddleston) accept stranded prepositions as a long-established feature of English — even Shakespeare used them. 'Who' in informal usage functions acceptably as an object when the sentence structure makes the meaning unambiguous. Under this framework, insisting on (B) in all contexts is unnecessarily formal and artificial.
Preferred answer for formal writing and standardised tests: (B) 'To whom did you speak at the conference?' is the formally superior choice because it uses the correct objective pronoun 'whom', front-positions the preposition for formal register, and applies inversion correctly. However, (A) is entirely grammatical in conversational and informal contexts and should not be labelled 'wrong' in a descriptive sense.
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