Modals, Prepositions and Conjunctions
Modals, Prepositions and Conjunctions
These three function-word classes together give 3 questions in the Part-III paper. They are examined through fixed usage rather than rules, which makes them a memory topic — and the one where an Indian-English habit is most likely to produce a confident wrong answer.
Modal Verbs
| Modal | Chief use | Example |
|---|---|---|
| Can / Could | Ability; polite request | Could you help me? |
| May / Might | Formal permission; possibility | It might rain |
| Shall | Suggestion, offer, formal obligation | Shall I open the window? |
| Should / Ought to | Advice, moral duty | You should apologise |
| Must | Strong obligation, certainty | You must obey the rules |
| Used to | Discontinued past habit | He used to smoke |
| Need not | Absence of necessity | You need not come |
A modal takes the bare infinitive — he can go, never he can to go. Two modals cannot stand together: use he will be able to do it.
Note must not against need not: the first forbids, the second merely releases from obligation. Both appear as options.
✗ You must not come if you are busy | ✓ You need not come if you are busy
Prepositions That Are Regularly Confused
| Pair | Distinction | Example |
|---|---|---|
| in / into | Position / movement | He ran into the room |
| between / among | Two / more than two | Among the five |
| beside / besides | Next to / in addition to | Sit beside me |
| since / for | Point of time / period | Since Monday; for three days |
| in / within | At the end of / before the end of | In a week; within a week |
The since and for pair, and the in and within pair, are the two most examined. I shall return in a week means after a week has passed; within a week means before it ends — a distinction with real consequences that questions exploit.
Verbs and Adjectives with Fixed Prepositions
These have to be learnt as units, because no rule generates them.
- Depend on, consist of; comprise and discuss take no preposition.
- Different from, superior to, inferior to, prefer X to Y.
- Angry with a person but angry at a thing; died of a disease.
Superior to and inferior to never take than, and prefer takes to, not than. These are the errors a graduate paper sets deliberately, because they are near-universal in Indian English.
✗ He is superior than me and prefers tea than coffee | ✓ He is superior to me and prefers tea to coffee
Conjunctions and the Pairs
Correlative conjunctions must precede the same part of speech in both halves — the rule of parallel structure. He not only teaches English but also Hindi is wrong; He teaches not only English but also Hindi is right.
- No sooner is followed by than, not when, and inverts the verb: No sooner had he arrived than it rained.
- Hardly / scarcely are followed by when.
- Lest is followed by should and is never used with not: Walk fast lest you should miss the bus.
- Unless and until already carry a negative, so a second one is an error.
superior to और prefer to — than कभी नहीं।
TRE pointer: This is the topic where Indian-English habit costs the most, and the examiner knows it. Superior to, inferior to, prefer to and the no sooner...than pairing are the four items most likely to appear. The lest...should construction is the graduate-level marker. Since none of these follows from a rule, they must be memorised outright — and with −1/3 negative marking, a half-remembered preposition is better left to option E.
60-Second Recap
- A modal takes a bare infinitive; two modals cannot stand together.
- Must not forbids; need not only removes the obligation.
- Between for two, among for more; beside is next to, besides is in addition to.
- Since for a point of time, for for a period; in a week after, within a week before.
- Superior, inferior and prefer all take to, never than.
- No sooner...than, hardly...when, lest...should, and never a double negative with unless.
Frequently Asked Questions
Is superior than ever correct?
No. Superior, inferior, senior, junior and prior all take to, never than, because they come from Latin comparatives that already carry the comparison. Prefer follows the same pattern: prefer tea to coffee, not prefer tea than coffee.
What is the difference between in a week and within a week?
In a week means after the week has passed, so the action happens at the end of that period. Within a week means before it ends, at any point inside it. The distinction matters in official writing and is set deliberately in questions.
Which word follows no sooner?
Than, not when. The construction also inverts the verb: no sooner had he arrived than it began to rain. Hardly and scarcely, by contrast, are followed by when. Mixing the two pairs is one of the most common errors in this topic.
Why is he not only teaches English but also Hindi wrong?
Because correlative conjunctions must be followed by the same grammatical element in both halves. Here not only is followed by a verb and but also by a noun. The correct form is he teaches not only English but also Hindi, keeping both halves nouns.