Choose the most suitable option to replace the highlighted part of the sentence: He walked slowly lest he should fall.
- (a)in order to not fall
- (b)so that he may not fall
- (c)lest he fall
- (d)for fear of falling
Answer
Why
Correct — C. The trigger is lest, meaning for fear that. It carries its own negative, and the verb after it normally takes one of two forms: should + base verb, or the bare base verb, the subjunctive.
The highlighted lest he should fall uses the first form. Lest he fall is the second — fall, not falls, even after he — and means the same.
It is the one option that keeps lest in a correctly formed clause → option (c).
Why the others are wrong
- (a)in order to not fall — The conventional negative infinitive puts not before to: in order not to fall. This version splits it, and it also drops the lest-clause the sentence is built on.
- (b)so that he may not fall — After the past tense walked, a so that purpose clause takes might, not may: so that he might not fall. May goes with a present main verb, as in he walks slowly so that he may not fall.
- (d)for fear of falling — For fear of falling is sound English: He walked slowly for fear of falling means the same. Nothing in the sentence rules it out. The key marks lest he fall, and this card follows the key.
Concept
Lest is a subordinating conjunction meaning for fear that, or so that ... not. The negative is built in, so no not follows it.
After lest, standard English uses should + base verb (lest he should fall) or the present subjunctive, the bare base form for every subject (lest he fall, lest she be late).
The subjunctive is why the keyed form reads fall and not falls: it takes no -s after he.
The highlighted lest he should fall is itself standard English, and SSC keyed the same should-form as the correction at 18 Sep 2024, 12:30, English Q.7.
There is no No-improvement option, so a replacement must be picked. For fear of falling is as grammatical as the keyed lest he fall. The key marks lest he fall, and this card follows it; see the dispute note.
Key facts
- Lest means for fear that and is negative in itself, so no not follows it.
- After lest, use should + base verb or the bare subjunctive: lest he should fall, lest he fall.
- After a past main verb, a so that purpose clause takes might rather than may.
- The conventional negative infinitive places not before to: in order not to fall.
Study next
Common traps
- Rejecting lest he fall because fall looks wrong after he — it is the subjunctive, which takes no -s.
- Choosing so that he may not fall, which sounds formal but puts may after the past tense walked.
- Adding not inside a lest-clause: lest he should not fall says the opposite of what is meant.
18 Sep 2024, 12:30, English Q.7 tests lest from the other side: 'Rohan exercised and ate a lot, lest he should not be weak' is corrected to lest he should be weak, dropping the surplus not.
Related PYQs
No directly related past PYQ was found.