Present Perfect/Simple Past/Present Perfect Progressive.

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<ul><li>Slide 1</li></ul> <p>Present Perfect/Simple Past/Present Perfect Progressive Slide 2 How do we form Present perfect? POSITIVE (+): Have/has + V 3 NEGATIVE (-): Havent/hasnt + V 3 QUESTION (?): Have/has+S+V 3 Slide 3 When do we use present perfect? a. situations that began in the past and continue up to now (for, since) -I have been a teacher since 2008. b. events that have /havent happened up to now (ever, never, yet, still, already) -Have you ever been to Syria? c. An event that has occurred more than once in the past (so far) -We have had 3 tests so far. Slide 4 What is the difference between present perfect and simple past? PRESENT PERFECT: -past events with no specific mention of time. *I have watched this film before. -situations that started in the past and are continuing. *I have been a teacher for 3 years. SIMPLE PAST: -past events when time is mentioned *I watched this film in 2000. -situations that began and ended in the past. *I was a student 3 years ago. Slide 5 How do we form Present Perfect Progressive? POSITIVE (+): Have/has + been + V ing NEGATIVE (-): Havent/hasnt + been + V ing QUESTION (?): Have/has + S + been + V ing Slide 6 When do we use Present Perfect Progressive? -For an activity that is happening at the moment -To tell how long this activity has been in progress. *Right now, I am sitting at my desk. *I have been sitting at my desk since seven oclock. I have been sitting here for two hours. Slide 7 What is the difference between Present Perfect and Present Perfect Progressive? If you say: I have been writing for 5 hours. The important thing in the sentence is the time. If you say: I have written thirty pages. The important thing in the sentence is number of pages. Slide 8 When cant you use Present Perfect Progressive? With non-progressives. You can say: * I have known Alex for 20 years. You cant say: *I have been knowing Alex for 20 years. Slide 9 What are the time expressions ? since, for, all day/morning </p>


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