PASSIVE VOICE
A short overview


PASSIVE I
 Somebody built this house in 1927.
       subject           object
  (what the subject does/did)

 This house was built (by my grandfather) in 1927.
     subject (agent)
  (what happened to the subject)

PASSIVE INFINITIVES
 The passive is
 BE + past participle (done/cleaned/seen, etc.)

 Present infinitive: I want to be left alone.   It can be repaired.     It will be taught.

 Past infinitive: It must have been lost.

DIFFERENT TENSES: EXAMPLES
 Present simple: The room is cleaned every day.
 Present progressive: The room is being cleaned right now.
 Past simple: The room was cleaned yesterday.
 Past progressive: The room was being cleaned.
 Present perfect: The room has been cleaned.
 Past perfect: The room had been cleaned.
 Future simple: The room will be cleaned.
 Future perfect: The room will have been cleaned.

VERBS WITH TWO OBJECTS
 Somebody gave the police the information.

 Two possible passive sentences:
              The police has been given the information.
              The information has been given to the police.

 Other verbs:
 ask offer pay show teach tell