I eat an apple. The apple is eaten.
I ate an apple. The apple was eaten.
I will eat an apple. The apple will be eaten.
I have eaten an apple. The apple has been eaten.
I am eating an apple. The apple is being eaten.
I was eating an apple. The apple was being eaten.
I will be eating an apple. The apple will be being eaten.
I had eaten an apple. The apple had been eaten.
I have been eating an apple. The apple has been being eaten.
I had been eating an apple. The apple had been being eaten.
I would eat an apple. The apple would be eaten.