1. Present Perfect Tense Have +V (third form) Has +V (third form) - I have written all these books.

2. We use it: When the time of the action in the past is not known or not given. When a past action has results in the present. for example: She has already won Wimbledon. or: They haven’t done it.

3. Present Perfect Have I has + past participle I've just washed the dishes, fed the dog and cooked dinner. What have you done, George? I've just painted the bench you're sitting on.

4. Regular Verbs AffirmativeNegativeInterrogative Long formShort formLong formShort form I have walkedI've walked'I have not walkedI haven't walkedHave I walked? You have walkedYou've walked You have not walked You haven't walked Have you walked? He has walkedHe's walkedHe has not walkedHe hasn't walked Has he walked? She has walkedShe's walked She has not walked She hasn't walked Has she walked? It has walkedIt's walkedIt has not walkedIt hasn't walkedHas it walked? We have walkedWe've walked We have not walked We haven't walked Have we walked? You have walkedYou've walked You have not walked You haven't walked Have you walked? They have walked They've walked They have not walked They haven't walked Have they walked?

5. Spelling Stop –stopped study – studied type - typed Prefer – preferred play – played smoke - smoked

6. Irregular Verbs AffirmativeNegativeInterrogative Long formShort formLong formShort form I have eatenI've eatenI have not eaten I haven't eaten Have I eaten? You have eatenYou've eatenYou have not eaten You haven't eaten Have you eaten? He has eatenHe's eatenHe has not eaten He hasn't eaten Has he eaten? She has eatenShe's eatenShe has not eaten She hasn't eaten Has she eaten? It has eatenIt's eatenIt has not eatenIt hasn't eatenHas it eaten? We have eatenWe've eatenWe have not eaten We haven't eaten Have we eaten? You have eatenYou've eatenYou have not eaten You haven't eaten Have you eaten? They have eaten They've eaten They have not eaten They haven't eaten Have they eaten?

7. Time expressions - just, ever, never, already, yet, always, - how long, so far, for, since, recently.

8. Present Perfect versus Past Simple Present Perfect Just, ever, never, yet, always, how long, for, recently. Past Simple Yesterday, last night, last week, last month, last year, ago, then, when, in 1973 etc.