All passive formations have the verb be before a past participle.
Tea is drunk everywhere.
These carpets are made by hand.
They are being held here in 2007.
This book was written by Shakespeare.
The car was being repaired.
She has not been told yet.
They had not been invited to the party.
It may be locked at any time.
She will be given a prize.
It must have been stolen.
He might have been killed.
It is going to be built here.
The job has to be done by tonight.
This place used to be used as a playground.
NOTICE: Irregular past participles are in Lesson 96.
How are these carpets made?
Who was this book written by?
Has she been told the news yet?
Can we be seen from here?
NOTICE: With have to and used to, use the correct form of the auxiliary do.
Does it have to be done by tonight?