English Grammar Rules for SSC and Banking Exams: Common Errors Guide

Grammar-based questions appear in every single SSC and Banking exam — Error Spotting, Sentence Improvement, Sentence Correction, Fill in the Blanks. Together, they account for 8–12 questions in most papers. That's 16–24 marks riding on whether you know your grammar rules cold.

The problem isn't that grammar is hard. It's that most aspirants study grammar randomly — a bit of tenses here, some subject-verb agreement there — without understanding which rules are actually tested and how examiners frame traps.

This guide covers the 20 most frequently tested grammar rules across SSC and Banking exams, with the exact error patterns examiners use.

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How Grammar Is Tested Across Exams

Exam	Question Types	Marks
SSC CGL Tier 1	Error Spotting, Sentence Improvement, Fill in Blanks	8–10 questions (16–20 marks)
SSC CGL Tier 2	Error Spotting, Sentence Connectors, Fill in Blanks	Higher difficulty, 10–12 questions
SSC CHSL	Same as CGL Tier 1, slightly easier	8–10 questions
IBPS PO Prelims	Error Detection, Fill in Blanks (grammar-based)	5–7 questions
IBPS PO Mains	Error Detection (complex sentences), Sentence Correction	5–7 questions
SBI PO	Grammar integrated into RC and Cloze Test	Indirect but significant

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The 20 Rules That Cover 90% of Questions

Rule 1: Subject-Verb Agreement

The most tested grammar concept across all exams. Period.

Core rule: Singular subject → singular verb. Plural subject → plural verb. Where examiners trap you:

• Long phrases between subject and verb: "The list of items is ready" (not "are" — "list" is the subject, not "items")
• "Each," "every," "either," "neither" take singular verbs: "Each of the boys was present"
• "A number of" takes plural; "The number of" takes singular
• Collective nouns (team, committee, jury) take singular when acting as a unit

Rule 2: Tense Consistency

If a sentence starts in past tense, it should generally stay in past tense unless there's a logical reason to shift.

Common error: "He went to the market and buys vegetables." → Should be "bought." Exception: Universal truths remain in present tense even in reported speech: "The teacher said that the earth revolves around the sun."

Rule 3: Preposition Usage

SSC loves testing incorrect prepositions. These must be memorized — there's no logic to most of them.

Frequently tested:

• "Consist of" (not "consist in" for composition)
• "Interested in" (not "interested for")
• "Congratulate on" (not "congratulate for")
• "Prevent from" (not "prevent to")
• "Die of disease" but "die from injury"
• "Superior to" (not "superior than") — same for inferior, senior, junior, prior, prefer

Rule 4: Articles (A, An, The)

Common traps:

• "An" before vowel sounds (not vowel letters): "an hour" but "a university"
• "The" with superlatives: "He is the tallest boy in the class"
• No article with abstract nouns used in general sense: "Honesty is the best policy" (not "The honesty")
• "The" with specific references: "The water in this glass is dirty" (specific water)

Rule 5: Pronoun Errors

Most tested:

• Pronoun must agree with antecedent: "Every student should bring his book" (not "their" in formal grammar — though this is changing in conversational English, exams still test traditional rules)
• "One" should be followed by "one's": "One should do one's duty"
• Reflexive pronouns: "He hurt himself" — not "He hurt him"

Rule 6: Relative Pronouns

• "Who" for people (subject), "Whom" for people (object), "Which" for things, "That" for both
• "Whose" for possession (can be used for things too): "The book whose cover is torn"
• After superlatives and "all/any/nothing," use "that" not "which"

Rule 7: Conditional Sentences

Three types tested repeatedly:

Type	If clause	Main clause	Example
First (possible)	Present simple	will + verb	If it rains, I will stay home
Second (unlikely)	Past simple	would + verb	If I were rich, I would travel
Third (impossible past)	Past perfect	would have + past participle	If he had studied, he would have passed

Trap: Using "would" in the if-clause is wrong: "If he would come" → Wrong.

Rule 8: Parallelism

Items in a list or comparison must be in the same grammatical form.

Wrong: "She likes reading, writing, and to paint." Right: "She likes reading, writing, and painting."

This appears in Error Spotting 2–3 times every year across SSC papers.

Rule 9: Comparison Errors

• Comparative + "than": "He is taller than I" (not "then")
• Don't use double comparatives: "more better" is always wrong
• Compare like with like: "The climate of Delhi is hotter than that of Mumbai" (not "than Mumbai" — you're comparing climate to climate, not climate to city)

Rule 10: Gerund vs Infinitive

Some verbs take gerund (-ing), some take infinitive (to + verb). No shortcut — memorize the common ones.

Gerund after: enjoy, avoid, mind, suggest, finish, admit, deny, consider, practice Infinitive after: want, hope, decide, plan, agree, refuse, promise, learn, afford Trap: "I am looking forward to meeting you" (not "to meet" — here "to" is a preposition, not part of infinitive)

Rule 11: Modifiers (Dangling and Misplaced)

Dangling modifier: "Walking down the street, the trees were beautiful." → Trees can't walk. Should be: "Walking down the street, I found the trees beautiful."

This is tested in Sentence Improvement questions almost every paper.

Rule 12: Double Negatives

"He doesn't know nothing" → Wrong. Should be "He doesn't know anything."

Words like "hardly," "scarcely," "barely," "seldom" are already negative — don't add another negative.

Rule 13: Redundancy

Tested in Sentence Improvement:

• "Repeat again" → "Repeat" (repeat already means again)
• "Return back" → "Return"
• "Revert back" → "Revert"
• "Cooperate together" → "Cooperate"
• "Free gift" → "Gift"

Rule 14: Correct Use of "Since" and "For"

• "Since" with a point in time: "since 2020," "since Monday"
• "For" with a duration: "for three years," "for two hours"

Rule 15: "Much" vs "Many," "Fewer" vs "Less"

• "Much" / "Less" for uncountable: much water, less sugar
• "Many" / "Fewer" for countable: many books, fewer students

Rule 16: Order of Adjectives

When multiple adjectives are used: Opinion → Size → Age → Shape → Color → Origin → Material → Purpose

"A beautiful large old rectangular brown Italian wooden dining table."

Not commonly tested directly, but appears in Sentence Improvement questions.

Rule 17: Inversion After Negative Adverbs

"Never have I seen such a thing." (Not "Never I have seen")
"Hardly had he reached when it started raining."
"Not only did he fail, but he also lost confidence."

Rule 18: "Unless" and "Until"

• "Unless" = if not. Don't use "not" with unless: "Unless you don't work hard" → Wrong. "Unless you work hard" → Right.
• "Until" relates to time: "Wait until he comes."

Rule 19: "Either...Or" and "Neither...Nor"

• Paired conjunctions — always used together
• The verb agrees with the subject nearest to it: "Neither the students nor the teacher was present."

Rule 20: "Though/Although" and "But"

Don't use both in the same sentence: "Although he is rich, but he is not happy" → Remove "but."

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How to Practice Grammar for Exams

Step 1 (Week 1-2): Read through these 20 rules. Understand each with examples. Use Objective General English by SP Bakshi (Arihant) or Plinth to Paramount by Neetu Singh for detailed explanations. Step 2 (Week 3-4): Solve Error Spotting and Sentence Improvement PYQs from the last 5 years. After each question, identify which rule is being tested. This pattern recognition is what gets you marks. Step 3 (Ongoing): In every mock test, review every grammar question — even the ones you got right. Note down the rule being tested. After 10 mocks, you'll see the same 15 rules repeating. Recommended Books:

• Objective General English by SP Bakshi (Arihant) — best all-round grammar book for competitive exams
• Plinth to Paramount by Neetu Singh — detailed and SSC-specific
• Word Power Made Easy by Norman Lewis — not grammar, but essential for vocabulary building which indirectly helps grammar intuition

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The Exam Day Grammar Approach

In the actual exam, grammar-based questions should take 30–40 seconds each. If you've internalized these rules through practice, you'll spot the error almost instantly. If you're spending more than a minute on a grammar question, mark it and move on — the return on time invested drops sharply after 45 seconds.

Keep checking SarkariNaukri.in for the latest exam patterns, because SSC and Banking commissions occasionally modify the weightage given to grammar versus vocabulary versus RC. Your preparation should adapt accordingly.