Active: People speak English in Australia.
Passive: English is spoken in Australia by people.
Active: I am writing the report now.
Passive: The report is being written by me now.
Active: The dog bit the mailman.
Passive: The mailman was bitten by the dog.
Active: He was still fixing the car when I arrived at the garage.
Passive: The car was still being fixed by him when I arrived at the garage.
Active: Someone will give us a tour of the museum.
Passive: We will be given a tour of the museum by someone.
Active: They are going to tear down the old building.
Passive: The old building is going to be torn down by them.
Active: She has already given him the bad news.
Passive: He has already been given the bad news by her.
Active: We had built the houses before the tsunami hit.
Passive: The houses had been built by us before the tsunami hit.
Active: They can deliver the furniture on Tuesday.
Passive: The furniture can be delivered by them on Tuesday.
Active: You should have finished your homework hours ago.
Passive: Your homework should have been finished by you hours ago.