Question

Passive voice They said, that they had finished their work in time.Someone broke my favourite cup.I think people will forget it very soon.​

Answer 1

They said that their work had been finished in time.

My favourite cup was broken.

I think it will be forgotten very soon.

Answer 2

Passive voice versions of the sentences you provided:

1. It was said by them that their work had been finished in time.
2. My favorite cup was broken by someone.
3. I think it will be forgotten by people very soon.