Question

Father was teaching subject (change the voice)​

Answer 1

Answer:

Subject was being taught by father.

Answer 2

Answer:

The subject was being taught by father.

Explanation:

1.You have to swap the subject and the object of the sentence.

Here, the subject is 'the subject'

And object is 'father was teaching'

2.after the swap teaching becomes taught.

3.since we cannot change the tense of sentence so we add 'being' because the work continues