Question

why were you abusing the poor old man change into passive voice​

Answer 1

Answer:

The old man’s work was finished.

Explanation:

Depending on your grammarian, you’ll want to omit the do-er (by him) here, lest you create a possessive antecedent.

The old man’s work was finished by him. ✗

Answer 2

Change the voice :-

⇒Why were you abusing the poor old man ?

⇒ Why was the poor old man being abused by you ?

Extra points :-

Change in interrogative sentence -

Interrogative sentence that begin with Wh- words are changed into passive voice by using same question word .

Pattern -

Active voice -  Wh- word + helping verb + subject + main verb + object ?

Passive voice - Wh- word + helping verb + object + 3rd form of verb + by + object ?