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Top 20 Grammar Rules Cheat Sheet & Quick Revision Notes

A fast 10-minute revision cheat sheet of the top 20 English grammar rules frequently tested in NIMCET Error Spotting and Sentence Correction.

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Updated 1 September 2026

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Short on time before your NIMCET mock test? This 10-minute grammar cheat sheet summarizes the top 20 high-frequency English rules tested in NIMCET Error Spotting and Sentence Correction questions.


Rules 1 to 5: Subject-Verb Agreement & Quantifiers

  1. One of the + Plural Noun + Singular Verb:
    • Example: One of the students is absent today.
  2. A Number of vs The Number of:
    • A number of + Plural Verb →\rightarrow A number of students were present.
    • The number of + Singular Verb ightarrow ightarrow The number of applicants is high.
  3. Collective Nouns: Take singular verbs when acting as a single unit; take plural verbs when divided in opinion.
    • Example: The jury has reached a verdict. / The jury were divided in their opinions.
  4. Distributive Pronouns: Each, Every, Either, Neither, Everyone always take singular verbs.
    • Example: Every boy and girl was given a certificate.
  5. Neither / Either Count Rules: Use Neither/Either for exactly 2 persons/things; use None/Any for more than 2.
    • Example: Neither of his two sons (2) ∣\mid None of his five sons (>2>2).

Rules 6 to 10: Adverbs, Inversion & Conditionals

  1. Negative Adverb Inversion: Placing restrictive adverbs (Hardly, Scarcely, Seldom, Barely, Rarely) at sentence start requires subject-auxiliary inversion.
    • Formula: Hardly+had+Subject+V3⋯+when+V2\text{Hardly} + \text{had} + \text{Subject} + \text{V3} \dots + \text{when} + \text{V2}.
  2. Correlative Adverb Pairing:
    • Hardly / Scarcely pairs with when (NEVER than).
    • No sooner pairs with than (NEVER when or then).
  3. Third Conditional Rule:
    • Structure: If+had + V3,…would have + V3If + \text{had + V3}, \dots \text{would have + V3}.
    • Example: If he had left early, he would have caught the train.
  4. Lest... Should Rule: Lest means "for fear that" and is always followed by should (or subjunctive V1). It is inherently negative, so do not add not.
    • Example: Run fast lest you should miss the bus.
  5. It is High Time Rule: It is time / It is high time followed by a subject takes a past subjunctive verb (V2).
    • Example: It is high time we started studying.

Rules 11 to 15: Adjectives, Comparatives & Modifiers

  1. Double Comparatives: Avoid using double comparatives or superlatives.
    • Incorrect: He is more taller than me. →\rightarrow Correct: He is taller than me.
  2. Comparative Preposition 'To': Adjectives ending in -ior (senior, junior, superior, inferior, prior) take to instead of than.
    • Example: He is senior to me by two years.
  3. Hyphenated Compound Adjectives: Never pluralize compound adjectives.
    • Example: A five-year-old boy (NOT five-years-old); A ten-rupee note.
  4. Prefer... To: Prefer takes to when comparing two nouns.
    • Example: I prefer tea to coffee.
  5. Dangling Participles: Ensure opening participial phrases modify the correct main subject.

Rules 16 to 20: Prepositions, Pronouns & Uncountable Nouns

  1. No Prepositions with Transitive Verbs: Omit prepositions after discuss, enter, order, resemble, accompany.
    • Correct: We discussed the plan (NOT discussed about).
  2. Objective Case Pronouns: Use objective pronouns (me, him, her, us, them) after prepositions.
    • Example: Between you and me (NOT between you and I).
  3. Uncountable Nouns: Nouns like information, furniture, advice, luggage, poetry, equipment are uncountable and strictly singular.
    • Incorrect: He gave me many advices. →\rightarrow Correct: He gave me much advice (or pieces of advice).
  4. Quantifiers for Countable vs Uncountable:
    • Use Many / Few / Fewer with Countable nouns.
    • Use Much / Little / Less with Uncountable nouns.
  5. Ordinal Articles: Use definite article the with ordinal numbers (the first, the second), but omit with cardinal numbers (chapter one).

Frequently Asked Questions (FAQ)

Q1: What is the rule for "No sooner... than" in NIMCET error spotting?

A: "No sooner" requires subject-auxiliary inversion (did + V1 or had + V3) and must strictly pair with than (e.g., "No sooner had I arrived than the meeting started").

Q2: Is "information" ever used as "informations" in grammatically correct English?

A: No, "information" is an uncountable noun and has no plural form. To express plurality, use "pieces of information".

Q3: What verb follows "One of the students who..."?

A: When "who/that" relative pronoun is present, the verb agrees with the plural antecedent noun (students), taking a plural verb (e.g., "One of the students who were selected"). Without "who", it takes a singular verb ("One of the students is selected").

Q4: Why is "prefer coffee than tea" wrong?

A: The verb prefer strictly takes the preposition to when making comparisons between two items (e.g., "I prefer coffee to tea").