TENSES

THE PASSIVE VOICE

	present	past	future
simple	am is      +   V3 are	was           +   V3 were	will  +  be  +  V3
contin	am is      +  being  +   V3 are	was         +  being  +   V3 were
perfect	have         +  been  +   V3 has	had   +  been  +   V3	will  +  have  +  been  +  V3
am/is/are  +  going  +  to be  +  V3
must/can/have to/should  +  be  +  V3