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Do not use the present perfect (I have done) when you talk about a finished time ( yesterday / ten minutes ago ) The weather was nice yesterday. ( not 'has been nice' ) They arrived tem minutes ago. ( not 'have arrived' ) I ate a lot of sweets when I was a child. ( not 'have eaten' ) Use a past tense to ask When ... ? or What time ... ? When did they arrive? ( not 'have they arrived' ) What time..

The present perfect is a present tense. It always tells us something about now. 'Tom has lost his key' = he doen't have his key now. The past simple tells us only about the past. 'Tom lost his key' = whe don't know whether he has it now or not. We only know that he lost it at some time in the past. Jack grew a beard but but now he has shaved it off. ( so he doesn't have a beard now ) They went o..

We use the present pefect to talk about something that began in the past still continues now. Compare the present and present perfect : Amy is in hospital. She has been in hospital since Monday. We know each other very well We have known each other for a long time. I have been doing something (present perfect continuous) = I started doing something in the past and I am still doing it ( or have j..

When we talk about a period of time that continues from the past until now, we use the present perfect (have been / have travelled etc.) Have you ever eaten caviar? (in your life) We've never had a car. Have you read Hamlet? / No, I haven't read any of Shakespeare's plays. In the following examples too the speakers are talking about a period that continues until now (recently / in the last few d..

The present perfect simple is have/has + past participle. The past participle often end in -ed (finished/decided etc.), but many importantverbs are irregular (lost/done/been/written etc). When we use the present perfect there is always a connection with now. The action in the past has a result now. Where's your key? / I don't know. I've lost it. ( I haven't got it now ) He told me name but I've ..