PASSIVE VOICE

The dogs HAVE BEEN FED. (passive)
Mark FED the dogs. (active)

The dinner WILL BE PREPARED. (passive)
The women PREPARED dinner. (active)

The fish HAS BEEN WASHED. (passive)
Rosie WASHED the fish. (active)

The ball HAS BEEN THROWN. (passive)
Frank THREW the ball. (active)

The dishes SHOULD HAVE BEEN WASHED. (passive)
Mary WASHES the dishes. (active)