The use of a tense in a passive sentence must be the same as that in the active voice.

Simple present
  • Active: The big monkey scratches the small monkey.
  • Passive: The small monkey is scratched by the big monkey.
Simple present continuous
  • Active: Their dog is chasing my cat.
  • Passive: My cat is being chased by their dog.
Present perfect
  • Active: The men have loaded the sheep onto trucks.
  • Passive: The sheep have been loaded onto trucks (by the men).
Simple past
  • Active: My wife kicked me on my knee.
  • Passive: I was kicked on my knee (by my wife).
Past continuous
  • Active: The gang members were discussing the planned robbery.
  • Passive: The planned robbery was being discussed (by the gang members).
Past perfect
  • Active: The hunter had shot two wild boars.
  • Passive: Two wild boars had been shot by the hunter.
Simple future
  • Active: The children will blow up these balloons.
  • Passive: These balloons will be blown up (by the children).
Future continuous
  • Active: She will be painting the doghouse.
  • Passive: The doghouse will be being painted (by her).
Future perfect
  • Active: The police will have questioned the suspects.
  • Passive: The suspects will have been questioned (by the police).
Modals
  • Active: He should/must sell his car.
  • Passive: His car should/must be sold (by him).
Modal continuous
  • We may be building a giant sandcastle.
  • A giant sandcastle may be being built (by us).
Modal perfect
  • Active: A suicide bomber might/could have detonated the bomb.
  • Passive: The bomb might/could have been detonated by a suicide bomber.