Past participle verb
eat
eaten
The recepcionist opens the mail.
simple present
The recepcionist opened the mail.
The mail was opened by the recepcionist.
leave
left
We talked on the phone yesterday.
simple past
Frank closed the store last night.
The store was closed last night (by Frank)
choose
chosen
I've been to Paris before.
present perfect
A tornado destroyed a city in the U.S.
A city in the U.S. was destroyed by a tornado.
show
shown
We've been waiting in line for hours!
present perfect continous
Someone stole a cellphone and broke some windows.
A cellphone was stolen and windows were broken.