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Grammar Section
                                                   PASSIVE VOICE
                   The passive  is  formed  by using the  appropriate tense of the  verb to be + past participle.
            Present Perfect Continuous, Future Continuous, Past Perfect Continuous are not normally used in
            the passive.

                                                Active Voice                      Passive Voice
            Present Simple            They serve dinner at 6 pm.         Dinner is served at 6pm.
            Present Continuous        They are serving….                 Dinner is being served..
            Past Simple               They served ….                     Dinner was served..
            Past Continuous           They were serving..                Dinner was being served…
            Future Simple             They will serve..                  Dinner will be served…
            Present Perfect           They have served ..                Dinner has been served…
            Past Perfect              They had served…                   Dinner had been served…
            Future Perfect            They will have served..            Dinner will have been served..
            Present infinitive        They should serve…                 Dinner should be served…
            Perfect infinitive        They should have served..          Dinner    should   have    been
                                                                         served…
            -ing form                 He likes them serving his dinner.   He  likes  his  dinner  being
                                                                         served.
            Perfect –ing form         Having served dinner..             Dinner having been served..
            Modals + be + p.p         You must serve dinner.             Dinner must be served…

                The passive is used:
                  When the agent (the person who does the action) is unknown, unimportant, obvious from the
                    context. Ex.: The door had been locked (we don’t know who locked the door – unknown
                    agent)
                  When we are interested more in the action than the agent, such as in news reports, formal
                    notices,  instructions,  processes,  headlines,  advertisements  etc.  Ex.:  The  whole  area  was
                    evacuated (news report). Breakfast is served from 6 pm to 10pm. (formal notice)
                  To make statements more formal or polite. Ex.: My new dress has been ruined (more polite
                    than saying ‘You ruined my dress’)
                  To put emphasis on the agent. Ex.: The Pyramids were built by the ancient Egyptians.

                Changing from Active into Passive

                  The  object  of  the  active  verb  becomes  the  subject  in  the  new  sentence.  The  active  verb
                    changes into a passive form and the subject of the active verb becomes the agent which is
                    either introduced with ‘by’ or is omitted. Ex.: Active: The mayor opened the new school
                    (object) – Passive:  The new school (subject) was opened by the mayor (the agent).
                  The passive can be used only with transitive verbs (verbs which take an object such as give,
                    write, take, open etc.). Verbs such as happen, sleep, come, go, seem etc are not used in the
                    passive.
                  In the passive we use by+ agent to say who or what did the action. We use with + instrument
                    or material to say what the agent used. Ex.: She was hit on the head by the burglar with a
                    piece of wood.
                  Verbs such as make, hear, help, see are followed by a to-infinitive in the passive. Ex.: They
                    helped him tidy the garage. – He was helped to tidy the garage.
                  The  verbs  believe,  expect,  feel,  hope,  know,  report,  say,  think  are  used  in  the  following
                    passive patterns in personal and impersonal constructions. Ex.: Subject (person) + passive +



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