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If I like the car, I’ll buy it.                       I’ve visited the National History Museum, so I don’t
                 If you want to get into the museum, you must buy      want to go there again.
                 a ticket.                                           •  for actions that happened in the past and their
                                                                       results are obvious in the present.
                 If you don't feel well, go to bed.
                                                                       Look! Jerry has broken his leg!
                                   NOTE                                             TIME EXPRESSIONS

                    When the if-clause comes before the main                 always, ever, never, before, so far, yet,
                    clause, put a comma to separate them.                   already, just, once, twice, etc.


                  Module 6                                             Present Perfect Simple vs Past Simple

                  Present Perfect Simple                             We use the Present      We use the Past Simple:
                                                                     Perfect Simple:
                                                                     •  for actions that happened  •  for actions that happened
                                  AFFIRMATIVE
                                                                       in the past, but we don’t   at a de inite time in the
                            FULL FORMS     SHORT FORMS                 say when exactly.       past. We say when.
                         I have played    I’ve played                  I have visited Rome.    I visited Rome last year.
                 Has it played? © MM Publications
                         You have played  You’ve played              •  with the time expressions:  •  with the time expressions:
                         He has played    He’s played                  ever, never, before, so far,   yesterday, in 1995, ago,
                         She has played   She’s played                 just, yet, already, always,   last week/month, etc.
                         It has played    It’s played                  for, since, once, twice, etc.
                         We have played   We’ve played
                         You have played  You’ve played                                  NOTE
                         They have played They’ve played
                                                                     • have/has gone means that someone has gone
                                                                      somewhere and is still there.
                                   NEGATIVE                           Lisa has gone to the supermarket. (She’s still there.)
                          FULL FORMS        SHORT FORMS
                                                                     •  have/has been means that someone has visited a
                     I have not played   I haven’t played             place but has come back.
                     You have not played  You haven’t played          Lisa has been to Barcelona. (Now she’s back.)
                     He has not played   He hasn’t played
                     She has not played  She hasn’t played             yet/already
                     It has not played   It hasn’t played
                     We have not played  We haven’t played           •  yet is used only with the question and negative form
                     You have not played  You haven’t played           of verbs. It is placed at the end of the sentence.
                     They have not played They haven’t played          Have you  inished yet?
                                                                       He hasn’t arrived yet.
                                                                     •  already is used with the affirmative and question
                    QUESTIONS            SHORT ANSWERS
                                                                       form of verbs. It is placed between the auxiliary
                 Have I played?   Yes, I have.    No, I haven’t.       and the main verb, or at the end of the sentence for
                 Have you played?  Yes, you have.  No, you haven’t.    emphasis.
                 Has he played?   Yes, he has.    No, he hasn’t.       I’ve already seen that  ilm.
                 Has she played?  Yes, she has.   No, she hasn’t.      You’ve  inished eating already!
                                  Yes, it has.    No, it hasn’t.
                 Have we played?  Yes, we have.   No, we haven’t.      Present Perfect with since/for/how long
                 Have you played?  Yes, you have.   No, you haven’t.    We use the Present Perfect with for, since and
                 Have they played? Yes, they have.   No, they haven’t.  how long for actions that started in the past
                                                                       and continue up to the present.
                 We form the Present Perfect Simple with                                               How long have
                 have/has and the past participle of the verb.                                         you had this car?
                 The past participle of regular verbs is the same as   since + a point in time
                 the Past Simple (verb + - ed).                   (e.g since 1980, since yesterday,
                                                                  since last week, since 4 a.m.)       I’ve had this car
                                     NOTE                         It refers to the time when the action   since 1999.

                          Look at the list of irregular verbs.    started.
                                                                  for + a period of time
                                                                  (e.g for two weeks, for three days, for   I’ve had this car
                   We use the Present Perfect Simple:
                 •  for actions which happened in the past, but we    ive minutes, for months)         for six years.
                  don't mention when exactly.                     It refers to the duration of the action.

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