She cleans the house every day. -> The house is cleaned by her every day.
ACTIVE VOICE PASSIVE VOICE
They are doing the work now. -> The work is being done by them now.
We'll deliver it next week. -> It'll be delivered by us next week.
Helen would give me a present -> A present would be given to me.
He wrote the book last year. -> The book was written last year.
Tim was riding a bike. -> A bike was being ridden by Tim.
Someone has stolen my bag. -> My bag has been stolen.
They had eaten dinner before eight. -> Dinner had been eaten by them before eight.
We'll have sent it by then. -> It'll have been sent by then.