Active to Passive
Passive to Active
100
The teacher closed the book.
The book was closed by the teacher.
100
The classroom is cleaned by the staff once a week.
The staff clean the classroom once a week.
200
The children are making a mess in the bathroom.

A mess is being made ( by the children ) in the bathroom.

200

Money is being lost by people at the casino.

People are losing money at the casino.

300
She has broken the window.
The window has been broken ( by her).
300
Melbourne is going to be changed by them.
They are going to change Melbourne.
400
I will send the letter tomorrow.
The letter will be sent ( by me ) tomorrow.
400
The dogs were chased out of the shop by the owner.
The owner chased the dogs out of the shop.
500
Many people in this class can speak English well.
English can be spoken well by many people in this class.
500
Tigers can be seen at the zoo if we are lucky.
If we are lucky we can see tigers at the zoo.