Select the option that expresses the given sentence in passive voice. The children have made the box.
- (a)Children had made the box.
- (b)The box is being made by the children.
- (c)The box has been made by the children.
- (d)The box had been made by the children.
Answer
Why
Correct — C. The active verb is have made — present perfect. Changing the voice never changes the tense, and the present perfect passive is has/have been + past participle.
The object, the box, becomes the subject. It is singular, so the auxiliary is has, not have.
The children have made the box → The box has been made by the children — option (c).
Why the others are wrong
- (a)Children had made the box. — Children had made the box is still active — the doer is still the subject and no form of be appears at all. It also moves the tense back to past perfect.
- (b)The box is being made by the children. — is being made is the present continuous passive, which reports an action in progress now. The active sentence gives have made, an action already completed.
- (d)The box had been made by the children. — had been made is the past perfect passive. Past perfect needs a second, later past event to sit before, and the active verb here is have made, not had made.
Concept
Voice change is a rearrangement, not a retelling. Fix the tense of the active verb first, then rebuild it in the passive frame that belongs to that tense.
Present perfect active is have/has + V3. Its passive is have/has been + V3, so one word — been — is the whole difference.
Because the old object becomes the new subject, agreement is decided by that object: the box is singular and takes has. The doer moves into a by-phrase at the end.
All four options are grammatical English sentences. They differ only in tense and in voice, so the item is settled the moment you label have made as present perfect.
Key facts
- Present perfect active have/has + V3 becomes have/has been + V3 in the passive.
- In the passive the auxiliary agrees with the new subject — the box has been made, the boxes have been made.
- The by-phrase naming the doer can be dropped when the doer is unknown or unimportant.
Study next
Common traps
- Reading have made as a plain past and reaching had been made.
- Leaving the original subject in front, which keeps the sentence active.
- Making the auxiliary agree with the children rather than with the box.
SSC gives an active sentence and four passives that differ only in tense.
The same present perfect to has been move is keyed at 11 Sep 2024, 09:00, English Q.1 (This training has already been taken by the teachers of our school) and at 12 Sep 2024, 09:00, English Q.17 (My secret diary has been taken by someone).
The present continuous version is asked at English Q.11 of this 13 Sep 2024, 12:30 paper.
Related PYQs
No directly related past PYQ was found.