Question

what's the passive voice of-
who did was when​

Answer 1

Answer:

The subject is currently "who" and the object is "this" - let's flip flop them:

This...who...

The "who" still performed the action on the "this", and so we need to alter the verb form to have that happen:

This was done by who?

However, who is only used for a subject. when the same interrogative (question word) is placed after a verb or preposition, it becomes whom.

With passive forms, 'by' must be used to refer to the agent - who is doing the action.

Here, 'by' is the preposition, so who? becomes by whom?

The passive form of the sentence becomes This was done by whom?.

Answer 2

Answer:

your answer is "who said this to whom"

hope it will help you my dear friend

thank you good to answer your question