In the morning, eggs are eaten. (by us)

So in the Present Continuous:
(O + AM/ARE/IS + BEING + V3)
Right now, the eggs are being eaten.

Present Perfect? (the result now of what happened before)
(O + HAS/HAVE + BEEN + V3)
Too late! The eggs have been eaten.

Well how about the Past?
Let's say:
One morning we came late, and the
____ ____ _____ ____.
eaten are already were eggs
(O + WAS/WERE + V3)