Passive and active forms

Active sentences are red.

Passive sentences are green.

Simple past:

+ Tom opened the door.

    The door was opened by Tom.

--Tom didn’t open the door.

     The door wasn’t opened by Tom.

?  Did Tom open the door?

    Was the door opened by Tom?

Present perfect:

+ Tom has opened the door.

    The door has been opened by Tom.

--Tom hasn’t opened the door yet.

   The door hasn’t been opened by Tom.

?  Has Tom opened the door yet?

   Has the door been opened yet?

Future:

+ Tom will open the door.

   The door will be opened by Tom.

-- Tom won’t open the door.

   The door won’t be opened by Tom.

?  Will Tom open the door?

   Will the door be opened by Tom or by Suzi?