Verbal Aptitude — Grammar, Usage, Vocabulary and Comprehension
Verbal Aptitude is the half of General Aptitude that engineering candidates most often leave unprepared, on the reasonable-sounding grounds that they already read and write English all day. The trouble is that GATE does not test whether you can read English; it tests a small, closed set of constructions where fluent intuition and the correct answer come apart — and there are perhaps a dozen of them. Subject–verb agreement when a phrase intervenes between the two. The difference between fewer and less, affect and effect, comprise and compose. Which preposition an idiom takes. Where a modifier attaches. Tense in a reported clause. None of these can be reasoned out in the exam hall from first principles, and all of them can be settled in advance by learning the test rather than the rule: strip the intervening phrase and check the verb; ask whether the noun is countable; put the modifier next to what it modifies. This chapter is those tests, and the questions are written so that the tempting wrong option is the one a fluent reader would pick without applying them.
Word Choice — the Pairs That Are Actually Asked
| Pair | How to decide |
|---|---|
| fewer / less | Can you count the noun? Fewer errors, less error — but less water, less time. Countable takes fewer. |
| affect / effect | Affect is almost always the verb, effect almost always the noun. "The change affected output" but "the effect on output". |
| comprise / compose | The whole comprises the parts; the parts compose the whole. "The set comprises five elements" — never comprises of. |
| principal / principle | Principal means chief, or the sum lent; a principle is a rule. The one ending in -le is the rule. |
| imply / infer | The speaker implies; the listener infers. The two run in opposite directions, and swapping them is a favourite. |
| complement / compliment | A complement completes; a compliment praises. Complete has an e in the middle, and so does complement. |
🧠 Articles, in three lines
a or an follows the sound, not the letter: an hour, a university, an MTech, a European. the marks something already identified or unique: the result we discussed, the Ganga, the highest value. And no article at all before an uncountable or a plural used in general: water boils, engineers design. Almost every article question in this section is one of those three cases wearing a technical noun.Modifiers, and Reading a Passage for What It Says
A modifier attaches to whatever it sits next to, which is why "Having failed the test, the engineer redesigned the valve" is right and "Having failed the test, the valve was redesigned" says the valve took the test. The test is to ask who or what performed the action in the opening phrase, and check that the same thing is the subject of the main clause. This is the one grammar error that produces sentences a fluent reader accepts without noticing, which is exactly why it is set.
- In a comprehension question, the answer is in the passage. If an option requires a fact the passage does not contain — however true that fact is in the world — it is wrong.
- Watch the quantifier in the option against the quantifier in the passage. A passage saying some materials fail does not support an option saying most do.
- Distrust an option that adds a cause. A passage may state that two things happened together without claiming either produced the other.
Key takeaways
- Learn the test, not the rule. Almost every verbal question is settled by one mechanical check applied in the exam hall.
- For agreement, delete the phrase between subject and verb and read again. Only "and" makes a subject plural; "along with", "as well as" and "in addition to" do not.
- With either–or and neither–nor the verb follows the nearer subject, so reversing the two nouns changes the verb.
- fewer counts, less measures; affect is the verb and effect the noun; the whole comprises its parts, never "comprises of"; the speaker implies and the listener infers.
- a or an follows the sound: an hour, a university, an MTech. Every article question is that, or "the" for something already identified, or no article for a generic plural.
- A modifier attaches to what it sits beside. Ask who performed the action in the opening phrase, and check that the main clause has the same subject.
- In comprehension, an option needing a fact the passage does not contain is wrong however true it is, and an option that upgrades "some" to "most" is wrong however reasonable.
Practice questions (8)
Attempt each one before opening the answer. Every explanation names the tempting wrong option as well as the right one, because that is where marks are lost.
Select the grammatically correct sentence.
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Answer: B — The project manager, along with three engineers, was present at the review.
Along with three engineers is a parenthetical phrase, not part of the subject, so the subject is the singular manager and the verb is was. Delete the phrase and the sentence reads "The project manager was present" — which is the whole test. Options A and C make the verb agree with engineers, the nearest noun, which is the error the construction is built to invite. Option D shows the contrast: and genuinely does make a compound plural subject, so that sentence needed were, not was.Fill in the blank: Neither the test reports nor the calibration certificate _____ available at the time of the audit.
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Answer: B — was
With neither … nor the verb agrees with the nearer subject, and the nearer one here is the calibration certificate — singular — so the verb is was. Reversing the two nouns would change the answer: "Neither the calibration certificate nor the test reports were available" is equally correct. That is what makes this construction worth learning rather than guessing: the right verb depends on the order the sentence happens to use, so there is no single answer to memorise.Choose the option that uses both words correctly: The new coating will _____ corrosion rates, and its _____ on service life is measurable.
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Answer: B — affect … effect
The first blank needs a verb — something the coating does to corrosion rates — and that is affect. The second follows its and precedes on, so it is a noun: the effect. The rule that covers nearly every occurrence is that affect is the verb and effect is the noun. There is a rare verb to effect, meaning to bring about ("to effect a change"), and it is worth knowing only so that you recognise it as rare rather than reaching for it here.Select the sentence with correct usage.
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Answer: C — The alloy comprises copper, tin and zinc.
The whole comprises its parts, with no preposition: the alloy comprises copper, tin and zinc. Option A adds of, which is the commonest error in the whole word-choice family and sounds entirely natural, which is why it is the tempting one. Option B inverts the relationship into a passive that no usage guide accepts. Option D runs the relation the right way round conceptually — parts to whole — but that direction needs compose, and it also has a plural subject with a singular verb, so it is wrong twice over.Choose the correct pair of articles: _____ hour before the review, we found _____ unexpected discrepancy in the data.
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Answer: B — An … an
The article follows the sound the next word starts with, not its spelling. Hour begins with a silent h, so the sound is a vowel and it takes an. Unexpected begins with a vowel sound too, so it also takes an — unlike university or unit, which begin with a consonantal "yoo" sound and take a. So the pair is an … an. This is the whole of the article rule that GATE tests, and the words chosen are always ones where spelling and sound disagree.Select the sentence in which the opening phrase modifies the right thing.
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Answer: B — Having reviewed the drawings, the team found the tolerance too tight.
Ask who did the reviewing, then check that the same thing is the subject of the main clause. Only in B is it the team — the ones who could review anything. In A the subject is the tolerance, so the sentence says the tolerance reviewed the drawings; in C it is the impersonal it, which reviewed nothing. D is grammatically attached but says the team had been reviewed, and then calls the drawings "too tight", which describes the tolerance rather than the drawings. A dangling modifier reads perfectly naturally, which is exactly why this question type exists.Fill in the blanks: There were _____ defects in this batch than in the last, because _____ moisture reached the powder.
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Answer: B — fewer … less
Ask whether you can count the noun. Defects can be counted, so they are fewer. Moisture cannot — there is no such thing as three moistures — so it is less. The pairing in this question is deliberate: both blanks are comparatives in the same sentence, so a candidate who reaches for one word twice gets it half right and scores nothing. Everyday speech uses less for both, which is why the countable case has to be checked rather than felt.A report states: "In the trials conducted so far, some of the treated samples have shown improved fatigue life." Which of the following can be concluded from this statement alone?
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Answer: B — At least one treated sample has shown improved fatigue life.
"Some" guarantees only that the number is at least one, which is exactly option B and nothing more. A upgrades some to most, and no quantity of "some" licenses "most". C adds causation: the sentence reports what was observed in the samples, not that the treatment produced it — the improvement could have another explanation. D makes a claim about untreated samples, which the statement never mentions; a sentence about one group entails nothing about a group it does not discuss. Every wrong option here is a true-sounding sentence, which is the shape of a comprehension question in this section.