Réponse :

                                 PASSIVE STRUCTURE

Simple present           am/is/are + PP               English is spoken here

Present ING            am/are/is + being + PP      A book is being written

Simple past             was/were + PP                   A man was arrested yesterday

Past ING                   was/were + being + PP      The car was being driven

Present perfect        has/have + been +PP         It has been made

Past perfect                 had + been + PP            A surprise had been prepared

Will future                   will be + PP                  My exercise will be done

Explications :

PASSIF  = BE ( conjugué ) + Participe passé

La structure BE + Participe passé ne change pas seul le temps change.