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Study Guide: Common Mistakes in English for Indian Competitive Exams
Source: https://www.fatskills.com/english-for-competitive-exams/chapter/common-mistakes-in-english-for-indian-competitive-exams

Common Mistakes in English for Indian Competitive Exams

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~13 min read

Note: English sections in exams like SSC CGL, CHSL, IBPS PO, SBI Clerk, RRB NTPC, and State PSCs follow predictable patterns. The traps aren't in obscure grammar—they're in the same 20-30 rules that examiners rotate across question types: Error Spotting, Cloze Tests, Reading Comprehension, Para Jumbles, and Fill in the Blanks .


A. The "Spelling" Traps (Direct Marks Lost)

  • Mistake 1: The Double-Letter Blind Spot

    • Scenario: You confidently write "embarass" (missing one 'r' and one 's'), "occassion" (missing one 's'), or "millenium" (missing one 'n'). These are among the most commonly misspelled words in SSC and Banking exams .

    • The Trap: High pressure and words with double letters cause your brain to simplify them. Words like "necessary" (one 'c', double 's') and "occasion" (one 's') are classic traps .

    • Fix: Use mnemonics. For "necessary": think "one collar (c) and two sleeves (s)" . For "embarrass": remember you're "really really" embarrassed (double 'r', double 's').

  • Mistake 2: The "-able" vs. "-ible" Confusion

    • Scenario: You write "changeable" as "changable" (dropping the 'e'), or "sensible" as "sensable." "Changeable" is a classic example—the silent 'e' is retained because it softens the 'g' .

    • The Trap: English spelling rules have exceptions, and examiners test the common ones.

    • Fix: Keep a personal list of tricky words from the official lists. The Oliveboard compilation includes high-frequency words like "separate" (ends with "-arate", not "-erate") and "definitely" (no 'a') .

  • Mistake 3: Homophone Horror (Their/There/They're)

    • Scenario: In descriptive tests or error spotting, you mix up "its" (possessive) and "it's" (it is), or "affect" (verb) and "effect" (noun). These are deliberately placed because they're easy to miss in skimming .

    • The Trap: The words sound identical, so under time pressure, your ear overrides your eye.

    • Fix: Memorize the function. "Its" = belonging to it. "It's" = it is. "Affect" = action (verb). "Effect" = end result (noun). Test yourself with homophone pairs weekly .


B. The "Error Spotting" Traps (The Most Predictable Section)

Error Spotting is formulaic. The same 10-12 grammar concepts appear across exams .

  • Mistake 4: Subject-Verb Agreement on "Each/Every"

    • Scenario: Question: "Each of the boys in the class have submitted his homework." You think it sounds fine, but "Each" is singular, so the verb should be has .

    • The Trap: Words like "each," "every," "either," "neither," and "none" are singular when they stand alone, but students often treat them as plural because of the plural noun that follows ("of the boys").

    • Fix: Mentally remove the "of the..." phrase. "Each (of the boys) has..." becomes clearly singular. This pattern appears in SSC CGL and IBPS PO repeatedly .

  • Mistake 5: The "Along With" / "As Well As" Trap

    • Scenario: "The manager, along with his assistants, are attending the meeting." The subject is "manager," singular, so the verb should be is. "Along with" and "as well as" do NOT make the subject plural .

    • The Trap: You see a long phrase between the subject and verb and forget to check the original subject.

    • Fix: Circle the core subject before the comma. Ignore everything between commas—it's just noise.

  • Mistake 6: Preposition Errors (Good IN vs. Good AT)

    • Scenario: "He is good in mathematics." The correct preposition with "good" is at .

    • The Trap: Prepositions are idiomatic, and literal translation from Hindi ("में अच्छा") leads to "good in."

    • Fix: Memorize common preposition collocations:

      • Good at (skill)

      • Married to (person)

      • Concerned about (worry)

      • Concerned with (involved in)

      • Angry with (person) / Angry about (situation)

  • Mistake 7: The "Many Student" vs. "Many Students" Count Error

    • Scenario: "Many student is competing" – you might miss that "many" requires a plural noun and plural verb .

    • The Trap: In spoken Hindi, "बहुत छात्र है" is common, but English requires "Many students are."

    • Fix: After "many," "several," "a number of," the noun is ALWAYS plural, and the verb is ALWAYS plural.

  • Mistake 8: The "More Than One" Singular Trap

    • Scenario: "More than one student have completed their project." Wrong. "More than one" takes a singular noun AND a singular verb. Correct: "More than one student has completed his project" .

    • The Trap: The phrase implies plurality, but grammar rules override logic.

    • Fix: Memorize this as a special exception. It appears in 1 in 3 error spotting sets.

  • Mistake 9: The "Scarcely/Hardly" Connector Error

    • Scenario: "Hardly had the teacher left the room than the pupils started enjoying." Wrong. "Hardly" and "scarcely" are followed by when, not "than" .

    • The Trap: You confuse it with "No sooner... than," which is correct. "Hardly... when" is the rule.

    • Fix: Create a mental pair:

      • No sooner... than

      • Hardly... when

      • Scarcely... when

  • Mistake 10: The "Know to" vs. "Know how to" Trap

    • Scenario: "Do you know to sing?" Wrong. After "know," you need "how/what/when" before the infinitive. Correct: "Do you know how to sing?" .

    • The Trap: This is a direct translation error from Hindi ("क्या आप जानते हैं गाना").

    • Fix: After "know," if an infinitive follows, always insert "how to," "what to," or "when to."

  • Mistake 11: The "Lest" Rule (One of the Most Tested)

    • Scenario: "Work hard lest you will fail." Wrong. "Lest" is followed by should or nothing at all. Correct: "Work hard lest you should fail" OR "Work hard lest you fail" .

    • The Trap: Students add "should not" or "will" because they think of the negative meaning.

    • Fix: "Lest" already implies a negative condition. Never use another negative with it. Memorize: "Lest + should" or "Lest + present subjunctive."

  • Mistake 12: The "Unless" No-Negative Rule

    • Scenario: "Unless you do not work hard, you will not pass." Wrong. "Unless" means "if not," so using "not" again creates a double negative. Correct: "Unless you work hard, you will not pass" .

    • The Trap: You think "unless" needs a negative to express the condition.

    • Fix: "Unless" = "if not." Never use "not" in the same clause as "unless."

  • Mistake 13: The "Though... Yet" Pairing

    • Scenario: "Though he is poor but he is honest." Wrong. "Though" is followed by yet, not "but." Correct: "Though he is poor, yet he is honest" .

    • The Trap: In Hindi, "हालांकि... लेकिन" is natural, but English doesn't allow two contrasting conjunctions.

    • Fix: Use either "though... yet" OR just "but." Never both.

  • Mistake 14: Adjective vs. Adverb Confusion After Sense Verbs

    • Scenario: "The horse looked beautifully." Wrong. After verbs like "look," "feel," "taste," "smell," "sound," use an ADJECTIVE, not an adverb. Correct: "The horse looked beautiful" .

    • The Trap: You think "looked" is an action, so it needs an adverb. But here, "looked" describes the subject's state, not an action.

    • Fix: If you can replace the verb with "is" and the sentence still makes sense, use an adjective. "The horse is beautiful" works. So "looked beautiful" is correct.

  • Mistake 15: The "One of" Plural Rule

    • Scenario: "She is one of the least important person in the office." Wrong. "One of" is followed by a plural noun. Correct: "one of the least important people" .

    • The Trap: "One" is singular, so you think the noun should be singular too. But the phrase means "one among many," so the following noun is plural.

    • Fix: Always "one of the + plural noun + singular verb." Example: "One of the students is..." (not "are").

C. The "Cloze Test" Traps (Context-Based Fillers)

Cloze tests are reading passages with blanks. The traps aren't just vocabulary—they're structural clues.

  • Mistake 16: Ignoring Discourse Markers (Transition Words)

    • The Trap: You fill a blank without noticing "however," "therefore," "consequently," or "moreover" earlier in the sentence. These words determine whether the blank needs a contrasting idea, a cause-effect, or an addition .

    • Fix: Before choosing, identify the relationship signaled by transition words:

      • "However," "but," "yet" → contrast

      • "Therefore," "thus," "consequently" → result

      • "Moreover," "furthermore," "in addition" → continuation

      • "For example," "for instance" → illustration

  • Mistake 17: Misreading Pronoun References

    • The Trap: A blank refers back to a noun two sentences earlier. You miss the connection and choose a word that doesn't agree in number or person.

    • Fix: For every blank, ask: "What does this refer to?" Track the subject through the passage.

  • Mistake 18: Vocabulary Out of Context

    • The Trap: You know a fancy word, but it doesn't fit the tone of the passage. The author might be using simple, neutral language, but you pick a formal, academic word because it sounds impressive .

    • Fix: Match the tone. If the passage is conversational, don't pick Latinate vocabulary. If it's formal, don't pick slang.

D. The "Reading Comprehension" Traps (Where Time Runs Out)

  • Mistake 19: Reading the Passage Before the Questions

    • The Trap: You read the whole passage carefully, then look at the questions, and realize you have to re-read to find specific details. This doubles your time .

    • Fix: Skim first, then go to questions. Read the first and last sentence of each paragraph to get the gist. Then read the questions. For factual questions (e.g., "According to the author..."), you can scan for keywords. For inference questions, you need overall understanding—but that's faster once you have the gist.

  • Mistake 20: Answering Based on Your Opinion, Not the Author's

    • The Trap: The question asks: "What is the author's main argument?" You pick what you believe is true, not what the author wrote .

    • Fix: Base your answer strictly on the passage. If the author presents multiple views, identify which one they support using words like "however," "therefore," "in fact."

  • Mistake 21: Missing the Author's Tone

    • The Trap: A question asks about the tone (optimistic, pessimistic, sarcastic, neutral). You pick based on the topic, not the language .

    • Fix: Look for adjectives and adverbs that reveal the author's attitude. If the author uses words like "fortunately" or "regrettably," the tone is not neutral.

  • Mistake 22: Spending Too Long on One Question

    • The Trap: You get stuck on an inference question and spend 3-4 minutes. RCs typically have 5-10 questions, and you have limited time .

    • Fix: If a question is tough after 1.5 minutes, mark it and move on. Come back if time permits. Never let one question kill your whole RC set.

  • Mistake 23: Not Guessing When You're Sure

    • The Trap: In most banking and SSC exams, there's no negative marking for wrong answers in English. Students still leave blanks .

    • Fix: Answer every single question. If you can eliminate even one option, you improve your odds. If you're completely unsure, pick the one that sounds most like formal written English.

E. The "Para Jumble" Traps (Sentence Rearrangement)

  • Mistake 24: Looking for the First Sentence Incorrectly

    • The Trap: You pick a sentence with "The," "This," or "It" as the first sentence, not realizing these words refer to something already mentioned, so they can't be first .

    • Fix: Look for a sentence that introduces a topic without referring to something prior. Sentences with general statements, definitions, or time markers (like "In 1980") are often first.

  • Mistake 25: Ignoring Pronoun Links

    • The Trap: You place a sentence with "he" or "they" before the sentence that introduces the person.

    • Fix: Find the noun that the pronoun refers to. That noun's sentence MUST come before the pronoun's sentence.

  • Mistake 26: Missing Time Sequence

    • The Trap: You jumble the order of events because you don't notice "earlier," "later," "before," or "after."

    • Fix: Underline all time indicators. Arrange events chronologically.

  • Mistake 27: Not Looking for Mandatory Pairs

    • The Trap: You try to arrange all sentences at once and get overwhelmed.

    • Fix: First, find pairs that MUST go together (e.g., a question and answer, a statement and its example). Then arrange the pairs.

F. The "One Word Substitution" & "Idioms" Traps (High-Yield)

  • Mistake 28: Guessing Without Context

    • The Trap: A one-word substitution like "A person who loves books" – you guess "bibliomaniac" (obsessive collector) when the correct word is "bibliophile" (lover) .

    • Fix: Learn the precise meanings of commonly tested substitutions:

      • Bibliophile: lover of books

      • Bibliographer: one who writes about books

      • Bibliomaniac: obsessed collector

  • Mistake 29: Idioms with Prepositions

    • The Trap: "He is averse with hard work." Correct: "averse to."

    • Fix: Memorize common idiom-preposition pairs:

      • Averse to

      • Adjacent to

      • Preferable to

      • Different from

      • Similar to

G. Summary Table: English Traps by Exam Type

Topic Specific Trap Fix
Spelling Double letters (embarrass, necessary) Use mnemonics: "one collar, two sleeves" 
  Homophones (its/it's, affect/effect) Memorize function: possessive vs. contraction; verb vs. noun
Error Spotting Each/Every + singular verb Ignore "of the..." phrase 
  Along with/as well as Subject is before the comma, ignore interrupter 
  Good at vs. good in Preposition collocations: at for skill
  More than one + singular Exception to plurality rule 
  Hardly... when vs. No sooner... than Memorize pairs 
  Know how to vs. know to After "know," add question word 
  Lest + should Never use "not" or "will" 
  Unless + no negative "Unless" = "if not," so no extra negative 
  Though... yet (not but) Only one contrasting conjunction 
  Adjective after sense verbs "Looks beautiful," not "beautifully" 
  One of + plural noun "One of the students" 
Cloze Test Ignoring transition words Identify relationships: contrast, result, addition
Reading Comp Reading passage first Skim, then questions, then scan 
  Using personal opinion Answer based on author, not you 
  Missing tone Look at adjectives and adverbs
Para Jumble Pronouns before nouns Find noun first, then pronoun 
  No mandatory pairs Find pairs, then arrange
One Word Substitution Confusing similar terms Learn precise meanings: -phile vs. -maniac 

H. The "Daily Practice" Trap

  • Mistake 30: Not Reading The Hindu/Indian Express Daily

    • The Trap: You rely only on grammar books and miss the vocabulary and comprehension practice that comes from reading editorials. Exam passages are often adapted from these sources .

    • Fix: Read one editorial daily. Extract 5 new words, note their usage, and write your own sentences. This builds vocabulary in context, which is exactly how exams test it .

This is the playbook for English in Indian competitive exams. Every trap here has cost someone their selection.