Respuestas

2012-04-20T01:20:02+02:00
The present perfect is used when the time period has NOT finished: I have seen three movies this week. (This week has not finished yet.) The simple past is used when the time period HAS finished: I saw three movies last week. (Last week has finished.) The present perfect is often used when giving recent news: Martin has crashed his car again. (This is new information.) The simple past is used when giving older information: Martin crashed his car last year. (This is old information.) The present perfect is used when the time is not specific: I have seen that movie already. (We don't know when.) The simple past is used when the time is clear: I saw that movie on Thursday. (We know exactly when.) The present perfect is used with for and since, when the actions have not finished yet: I have lived in Victoria for five years. (I still live in Victoria.) The simple past is used with for and since, when the actions have already finished: I lived in Victoria for five years. (I don't live in Victoria now.)