Note that short forms are not used in positive short answers.
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Present perfect – use
Past events when time is not mentioned
We use the present perfect khổng lồ talk about past actions or events when time is not mentioned, i.e. We don’t say when these events happened.I‘ve broken my arm.I’ve passed the exam.She’s found a job.just already, yet
We often the present perfect with just, already & yet. We can use just after the verb have to emphasise that these events are very recent.Tony has just called.
We use already in positive sentences to lớn talk about actions that we have completed sooner than we expected. Already goes after the verb have.I‘ve already finished my homework.
We use yet in negative sentences and questions to talk about things that we expect khổng lồ happen soon. Yet goes at the end of the sentence.Have you finished your homework yet?I haven’t finished my homework yet. recently
We often use the present perfect with recently to talk about past recent actions.They‘ve recently bought a new car. today, this week, this month, this year
We can use the present perfect with time expressions when the time we mention has not finished.I‘ve seen John today. (=Today has not finished.)Has she called you this week?
Past experiences – never, ever, before
We use the present perfect lớn talk about past experiences when we don’t say or we don’t know when something happened.He has been to the moon. He’s an astronaut.I haven’t been to India.never, ever, before
We often use the words never, ever, or before to talk about experiences.I‘ve never read this book.Have you ever seen a John Wayne film.I haven’t experienced anything like this before.
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The best thing I’ve ever done
We can use the present perfect simple with a superlative adjective and ever.This is the best meal I’ve ever had.It’s the most amazing place we’ve ever travelled to.How many times
We can also use the present perfect to lớn say how many times something has happened until now.I’ve watched this film three times. We’ve been to Paris twice. have gone to or have been to?
We say someone has gone somewhere when this person is still away, and we say someone has been somewhere when this person has already come back from that place.Tom has gone khổng lồ Ireland. He’ll be there for a couple of weeks. (=He’s in Ireland now.)We have been to lớn Ireland three times. We love it. (=We are not in Ireland now.)
Duration from the past until now – for, since
We can use the present perfect with for, since và how long khổng lồ ask or talk about situations that started in the past & have not finished.We‘ve been married for 25 years. I‘ve had this watch since I was a kid. How long have you been friends?
Compare:We‘ve been married for 20 years. (=We are married now)We were married for trăng tròn years. Then we divorced. (We are not married now)for + period of time; since + moment in the past
We use for + period of time (2 hours, 3 days, 20 years, etc.) và we use since + the moment in the past when something started.I’ve been here for hours. She’s been my teacher for three years. I’ve been unemployed since May. I’ve lived in this town since I was born. lately, all morning/day/year/etc.
We can also use the present perfect with lately or with all + period of time (all day, all morning, all my life, etc.) lớn talk about actions that started in the past & continue in the present.She’s been with me all day. I’ve been very busy lately. Don’t use ago
We can’t use ago with the present perfect.I‘ve had my watch for 2 years. (NOT I’ve had my watch since 2 years ago.)
Past simple or present perfect?When did it happen?
We use the present perfect (NOT past simple) khổng lồ talk about past experiences and actions when we don’t say or don’t know when they happened.I’ve lost my keys. We‘ve been to lớn a very nice restaurant.
We use the past simple (NOT present perfect) when we mention or ask about when something happened, or when the time is known by the speaker and the listener. We often use a past expression (last week, yesterday, when I was a child, etc.)We arrived yesterday.
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(NOT We’ve arrived yesterday.)When did the accident happen?Giving details in past simple
We use the present perfect to lớn introduce a past sự kiện or experience, but if we continue talking & we give details, then we use the past simple.A: I‘ve been to lớn the cinema.B: What did you see?A: I saw a very good film by…A: Oh, you‘ve broken your arm.B: Yes, I have.A: How did it happen?