The present perfect is formed from the present tense of the verb have and the past participle of a verb:

The present perfect continuous is formed with have/has been and the -ing form of the verb:

Use

We use the present perfect tense:

  • for something that started in the past and continues in the present:

They’ve been married for nearly fifty years.
She has lived in Liverpool all her life.

Note: We normally use the present perfect continuous for this:

She has been living in Liverpool all her life.
It’s been raining for hours.

  •  for something we have done several times in the past and continue to do:

I’ve played the guitar ever since I was a teenager.
He has written three books and he is working on another one.
I’ve been watching that programme every week.

We often use a clause with since to show when something started in the past:

They’ve been staying with us since last week.
I have worked here since I left school.
I’ve been watching that programme every week since it started.

  • when we are talking about our experience up to the present:


Note: We often use the adverb ever to talk about experience up to the present:

My last birthday was the worst day I have ever had.

Note: and we use never for the negative form:

Have you ever met George?
Yes, but I’ve never met his wife.

  • for something that happened in the past but is important at the time of speaking:

I can’t get in the house. I’ve lost my keys.
Teresa isn’t at home. I think she has gone shopping.
I’m tired out. I’ve been working all day.

 

 We use the present perfect of be when someone has gone to a place and returned:

A: Where have you been?
B: I’ve just been out to the supermarket.

A: Have you ever been to San Francisco?
B: No, but I’ve been to Los Angeles.

But when someone has not returned we use have/has gone:

A: Where is Maria? I haven’t seen her for weeks.
B: She's gone to Paris for a week. She’ll be back tomorrow.

We often use the present perfect with time adverbials which refer to the recent past:

just; only just; recently;

Scientists have recently discovered a new breed of monkey.
We have just got back from our holidays.

or adverbials which include the present:

ever (in questions); so far; until now; up to now; yet (in questions and negatives)

Have you ever seen a ghost?
Where have you been up to now?
Have you finished your homework yet?
No, so far I’ve only done my history.

WARNING:

We do not use the present perfect with an adverbial which refers to past time which is finished:

I have seen that film yesterday.
We have just bought a new car last week.
When we were children we have been to California.

But we can use it to refer to a time which is not yet finished:

Have you seen Helen today?
We have bought a new car this week.

   

Exercise

Section: 

Comments

Scientists have recently discovered a new breed of monkey. Can I put the time adverbial at the begining ? so it will be like this.
Recently, scientists have discovered a new breed of monkey.
If yes, does it apply to all other time adverbial?

Hello Salie108,

In general, time adverbials (including but not limited to 'recently') usually go in mid position or end position – in this example, it's in mid-position – but they can also be put in front position, so yes, your sentence is correct. Usually putting them in front position adds emphasis, though there can be other reasons for it. There's a detailed explanation of this in the Cambridge Dictionary's page on adverbs. I think that should answer your questions, but if you have any other specific ones, please don't hesitate to ask us.

All the best,
Kirk
The LearnEnglish Team

Hi everyone!
Is it possible to write: It's a long time I wanted to write you but.....

Hello Ilariuccia,

Not in standard English. Instead, I'd recommend 'I've been wanting to write (to) you for a long time' or 'It's been a long time since I wanted to write (to) you'.

All the best,
Kirk
The LearnEnglish Team

I have worked here since I left school
Can I use the following sentence instead of above one
I have been working here since I left school

Hello Hisham Altayeb,

Yes, both of those sentences are grammatically correct. There is a small difference in the sense of the sentences and to read about this you can visit this page.

 

Best wishes,

Peter

The LearnEnglish Team

Hello teacher, I am here again with a problem? I don't understand how to use since and for in present perfect? Can we use it in both present perfect and present perfect continuous?
Also tell me where to use since and where to use for?

Hello Saakshee,

You can use both 'for' and 'since' with both simple and continuous forms.

We use 'for' before a period of time.

We use 'since' before a point in time.

You can see examples of these uses on this page.

 

Best wishes,

Peter

The LearnEnglish Team

Thank you teacher, it is helpful.

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