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Present Perfect for & since Present Perfect vs. Simple Past The boy was 1m10 tall one year ago. Now he is 1m11 tall. He has grown one millimeter in one year. Tom is looking for his key. He can’t find it. He has lost his key. (=He lost it and he still hasn’t got it) (+) S + have/has + past participle (PP) Ex: Tom has lost his key. (-) S + have/has + not + PP Ex: Tom has not lost his key. (?) Have/Has + S + PP? Ex: Has Tom lost his key? Affirmative Negative Long form Short form I, you, we, they I have done I, you, we, them I ’ve done He, she, it He has done He, she, it He ’s done Long form Short form I, you, we, them I have not done I, you, we, them I haven’t done He, she, it He has not done He, she, it He hasn’t done . An action or situation that started in the past and continues in the present. Ex: He has played football since he was a child. An action when the time is not important, it is expressed as an experience. Ex: We have never traveled by train. An action was completed in the very recent past, expressed by 'just' and 'recently' . Ex: She has just broken her leg. Action is repeated in an unspecified period between the past and now. Ex: I have seen that movie three times. [...]... other _ they were at school fo 5 I haven’t had a holiday _ ten years r PRESENT PERFECT - Just, already, not yet SIMPLE PAST - Certain time in the past Ex: She has just arrived in Ex: She phoned him 2 minutes Ex: Have to Ex: He went to Rome in 1990 Tokyo - Whether/How often till now Rome? you ever been ago - Certain event in the past I have been to Rome twice - Emphasis on result - Emphasis on action... the past I have been to Rome twice - Emphasis on result - Emphasis on action Ex: I have bought a new bike Ex: I bought a new bike (I actually want to express that I have (just telling what I did in the past. ) a new bike now.) just, already, up to now, until now, yesterday, ago, in 1990, the other till now, ever, (not) yet, so far, day, last … Exercise 1: Use the correct tense to complete these sentences . Present Perfect for & since Present Perfect vs. Simple Past The boy was 1m10 tall one year ago. Now he is 1m11 tall. . very recent past, expressed by 'just' and 'recently' . Ex: She has just broken her leg. Action is repeated in an unspecified period between the past and now. Ex: I. ten years. since Since for since fo r PRESENT PERFECT SIMPLE PAST - Just, already, not yet Ex: She has just arrived in Tokyo. - Certain time in the past. Ex: She phoned him 2 minutes ago -