Change to active: The prize was won by Steven
Steven won the prize
The cake was baked by the chef
Passive
I am eating breakfast.
Active
Change to passive: Mary ate the sandwich
The sandwich was eaten by Mary
Mum cooked dinner for us
Active
The injection was given by the doctor
passive
The dog chased the cat
Active
The book was placed on the table
Passive
I finished the test on time.
Active
The dog is walked by James every day
Passive