Level: intermediate

We use perfect aspect to look back from a specific time and talk about things up to that time or about things that are important at that time.

We use the present perfect to look back from the present:

I have always enjoyed working in Italy. [and I still do]
She has left home, so she cannot answer the phone.

We use the past perfect to look back from a time in the past:

It was 2006. I had enjoyed working in Italy for the past five years.
She had left home, so she could not answer the phone.

We use will with the perfect to look back from a time in the future:

By next year I will have worked in Italy for 15 years.
She will have left home by 8.30, so she will not be able to answer the phone.

Present perfect

We use the present perfect:

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

They've been married for nearly 50 years.
She has lived in Liverpool all her life.

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

I've seen that film before.
I've played the guitar ever since I was a teenager.
He has written three books and he is working on another one.

  • for something that happened in the past but is important in the present:

I can't get in the house. I've lost my keys.
Teresa isn't at home. I think she has gone shopping.

We normally use the present perfect continuous to emphasise that something is still continuing in the present:

It's been raining for hours.
I'm tired out. I've been working all day.

Past perfect

We use the past perfect:

  • for something that started in the past and continued up to a later time in the past:

When George died, he and Anne had been married for nearly 50 years.
She didn't want to move. She had lived in Liverpool all her life.

  • when we are reporting our experience up to a point in the past:

My eighteenth birthday was the worst day I had ever had.
I was pleased to meet George. I hadn't met him before, even though I had met his wife several times.

  • for something that happened in the past and is important at a later time in the past:

I couldn't get into the house. I had lost my keys.
Teresa wasn't at home. She had gone shopping.

We use the past perfect continuous to show that something started in the past and continued up to a time in the past or was important at that time in the past:

Everything was wet. It had been raining for hours.
He was a wonderful guitarist. He had been playing ever since he was a teenager.

Modals with the perfect

We use will with the perfect to show that something will be complete at or before some time in the future:

In a few years they will have discovered a cure for the common cold.
I can come out tonight. I'll have finished my homework by then.

We use would with the perfect to refer to something that did not happen in the past:

If you had asked me, I would have helped you.
I would have helped you, but you didn't ask me.
You didn't ask me or I would have helped you.

We use other modals with the perfect when we are looking back from a point in time. The point of time may be in the future:

We'll meet again next week. We might have finished the work by then.
I will phone at six o'clock. He should have got home by then.

or the present:

It's getting late. They should have arrived by now.
He's still not here. He must have missed his train.

or the past:

I wasn't feeling well. I must have eaten something bad.
I checked my mobile phone. She could have left a message.

Perfect aspect 1

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Perfect aspect 2

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Perfect aspect 3

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Comments

Hi Anna,

THe difference is not really about general and specific time, but rather finished and unfinished time. The phrase 'last year' is used when that time is finished and so the past simple is required. The phrase 'in the last year', on the other hand, is used when the period is not finished - in other words, it means 'in the past year up to and including today' - and so the present perfect is needed.

You can think of the difference as similar to the difference between 'yesterday' (a finished time period) and 'today' (an unfinished time period including the present moment).

I hope that clarifies it for you.

Best wishes,

 

Peter

The LearnEnglish Team

Hello..
My question is....
1.What to do had you gone there at his home?
2.To do what had you gone there at his home?
3.Had you gone there at his home to do what?
4.What had you gone to do there at his home?
5.Had you gone there to do what at his home?
Which is right???
please, answer me..

Hello Dil Gill,

The least unnatural sentence is number 4.

Please note that LearnEnglish is a site for learners of English and we are happy to answer questions about the material here or, if time allows, about the language in general. However, we don't solve activities from other sites or from language courses, or tasks set as tests or homework activities - these are for you to do!

Best wishes,

 

Peter

The LearnEnglish Team

i can't distinguish PRESENT PERFECT CONTINUOUS and PRESENT PERFECT. somebody helps me !!
thanks a lot!!!

Hello letuananhbk93,

The difference between these present perfect simple and present perfect continuous is a matter of perspective or emphasis. The continuous is often used to express an interest in an action still in progress, or without referring to whether it is finished or not, whereas the simple is often used to express that an action has been finished. The page linked to above gives a fuller explanation with examples.

Best wishes,
Kirk
The LearnEnglish Team

Hi,

I have a doubt about the Past perfect continuous. Could you use it to highlight the consequence.
Example: They were exhausted because they had been working all night.
Thank you for your answer.

Hi Litana,

It seems to me that in the sentence you give as an example, the past perfect continuous is used to speak about the cause more than the consequence. I'm not sure that you could use this as a general rule for using the continuous form, though in this case it might be true that it emphasises the cause.

We have a page on the continuous aspect in general, and the past perfect continuous in particular is typically used to emphasis temporary situations (as opposed to permanent ones) or the continuation of an activity (as opposed to completion). In this case, the length of time they worked is what is emphasised.

I hope this helps.

Best wishes,
Kirk
The LearnEnglish Team

hi
i have a doubt

Where Did they go ?

Where do they go ?

Where did they gone ?

which one of the above is correct

Hi josephalex,

Both 'Where did they go?' (not 'Did') and 'Where do they go?' are grammatically correct. Which is the correct one to use will depend upon the context.

Best wishes,

 

Peter

The LearnEnglish Team

Hi i have another doubt

"i'm goint to tution"
"i'm going for tution"

Can you please say which one is right ? thankyou

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