Sentence Correction

Fix grammatical errors in sentences

110 practice questionsPage updated 31 Aug 2026Reviewed by AISEA Editorial DeskPractice questions

Sentence correction questions ask you to replace an incorrect sentence with the version that is grammatically correct and closest to the intended meaning. Correct the sentence systematically: identify the subject and verb, check tense and agreement, inspect articles and prepositions, then verify pronouns, word order, modifiers and parallel structure.

Key formulas and rules

Subject–verb agreement: the verb matches the subject's person and number, not a nearby noun.

Time marker + tense: yesterday usually takes simple past, while since or for often signals an action continuing to the present.

One of the + plural noun: one of the best students, not one of the best student.

Indirect question: reporting verb + question word + subject + verb, as in asked where I was going.

Correction test = grammar + meaning + standard usage; a sentence is not correct merely because it sounds familiar.

Key concepts

Use a fixed correction order

Read the complete sentence first. Find the main subject and finite verb, identify the tense and clause structure, then check smaller details such as articles, prepositions, pronouns and word choice. This order prevents a distracting nearby noun or familiar phrase from hiding the actual error.

Subject and verb agreement

The main subject controls the verb. In 'The box of chocolates is heavy', box is the subject and chocolates is part of a prepositional phrase. Indefinite pronouns such as each, every and neither are normally singular. With neither...nor or either...or, standard exam questions usually make the verb agree with the nearer subject.

Tense and time expressions

Match the verb form to the time reference and whether the action is complete or continuing. Use simple past with a finished time such as yesterday. Use present perfect or present perfect continuous for an action that began in the past and continues to the present when the sentence provides since or for. Keep the sequence of tenses consistent across clauses.

Worked examples

Example 1

The team have finished their project. Choose the correct version.
A) The team are finishing their project.
B) The team has finished its project.
C) The team has finished their project.
D) The team have finished its project.

Solution

Step 1: In this sentence, team is treated as one unit.
Step 2: A singular collective noun takes has.
Step 3: The singular pronoun referring to the unit is its.
Answer: B) The team has finished its project.

Example 2

Neither the students nor the teacher were present. Choose the correct version.
A) Neither the students nor the teacher were present.
B) Neither the student nor the teacher were present.
C) Neither the students nor the teacher was present.
D) Neither the students or the teacher was present.

Solution

Step 1: The construction is neither...nor, not neither...or.
Step 2: In the standard exam rule, the verb agrees with the nearer subject, teacher.
Step 3: Teacher is singular, so use was.
Answer: C) Neither the students nor the teacher was present.

Example 3

Each of the boys have their own room. Choose the correct version.
A) Each of the boys have their own room.
B) Each of the boy has his own room.
C) Each of the boys has their own room.
D) Each of the boys has his own room.

Solution

Step 1: Each is the subject and is singular.
Step 2: The verb must therefore be has.
Step 3: In the traditional formal exam convention used here, the pronoun is singular his.
Answer: D) Each of the boys has his own room.

Example 4

He gave me an useful advice. Choose the correct version.
A) He gave me useful advices.
B) He gave me an useful advice.
C) He gave me some useful advice.
D) He gave me a useful advice.

Solution

Step 1: Advice is normally uncountable, so it does not take a/an or a plural ending.
Step 2: Useful begins with a consonant sound, but an article is still unnecessary because advice is uncountable here.
Step 3: Some useful advice is the natural corrected phrase.
Answer: C) He gave me some useful advice.

Example 5

I have seen him yesterday. Choose the correct version.
A) I have seen him yesterday.
B) I see him yesterday.
C) I saw him yesterday.
D) I had seen him yesterday.

Solution

Step 1: Yesterday identifies a finished time in the past.
Step 2: Finished past time normally takes the simple past, saw.
Step 3: The present perfect form have seen does not normally combine with a finished time such as yesterday.
Answer: C) I saw him yesterday.

Example 6

He asked me where was I going. Choose the correct version.
A) He asked me where I am going.
B) He asked me where I went.
C) He asked me where was I going.
D) He asked me where I was going.

Solution

Step 1: The phrase is an indirect question inside a larger sentence.
Step 2: Indirect questions use statement order: subject before verb.
Step 3: I comes before was, giving where I was going.
Answer: D) He asked me where I was going.

Example 7

The book comprises of five chapters. Choose the correct version.
A) The book comprises of five chapters.
B) The book is comprising of five chapters.
C) The book comprised of five chapters.
D) The book comprises five chapters.

Solution

Step 1: Comprise already means consist of or include in this construction.
Step 2: In standard formal usage, do not add of after comprises.
Step 3: The present-tense subject book takes comprises.
Answer: D) The book comprises five chapters.

Example 8

Choose the correct version: She enjoys reading, writing and to swim.
A) She enjoys reading, writing and swimming.
B) She enjoys to read, writing and swimming.
C) She enjoys reading, to write and swimming.
D) She enjoys read, write and swim.

Solution

Step 1: The verb enjoys is followed by a series of activities.
Step 2: The first two items use the -ing form: reading and writing.
Step 3: Make the third item parallel by using swimming.
Answer: A) She enjoys reading, writing and swimming.

Subject–verb agreementCambridge Dictionary · Checked 1 Sep 2026Supports: agreement between the person and number of a subject and its verb

Word order: whatCambridge Dictionary · Checked 1 Sep 2026Supports: the difference between direct question inversion and indirect question word order

Verb patterns: with and without objectsCambridge Dictionary · Checked 1 Sep 2026Supports: verb patterns, objects and the grammatical structure of clauses

Sentence Correction

Key formulas and rules

Key concepts

Use a fixed correction order

Subject and verb agreement

Tense and time expressions

Articles and countability

Pronouns and determiners

Prepositions and verb patterns

Word order and clause structure

Parallelism and comparison

Worked examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Representative solved questions

Question 1

Question 2

Question 3

Common mistakes and useful habits

Sources and review notes

Ready to test your understanding?

Key formulas and rules

Key concepts

Use a fixed correction order

Subject and verb agreement

Tense and time expressions

Articles and countability

Pronouns and determiners

Prepositions and verb patterns

Word order and clause structure

Parallelism and comparison

Worked examples

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Representative solved questions

Question 1

Question 2

Question 3

Common mistakes and useful habits

Sources and review notes

Ready to test your understanding?

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