I saw a spoon bent.

Hi,

What are the differences between these sentences?

I saw a spoon bent.

I saw a spoon being bent.

I saw a spoon was bent.

I saw a spoon had been bent.

I saw a bent spoon.

Another group of sentences:

I saw his wife beaten.

I saw his wife being beaten.

I saw his wife was beaten.

I saw his wife had been beaten.

Thank you very much.