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Future continuous and future perfect

Do you know how to use phrases like I'll be studying or I'll have finished?

Look at these examples to see how the future continuous and future perfect are used.

In three years' time, I'll be studying medicine.
In five years' time, I'll have finished studying medicine.

Try this exercise to test your grammar.

Grammar test 1

Future continuous and future perfect: Grammar test 1

Read the explanation to learn more.

Grammar explanation

Future continuous

We can use the future continuous (will/won't be + -ing form) to talk about future actions that: 

  • will be in progress at a specific time in the future:

When you come out of school tomorrow, I'll be boarding a plane.
Try to call before 8 o'clock. After that, we'll be watching the match.
You can visit us during the first week of July. I won't be working then.

  • we see as new, different or temporary:

Today we're taking the bus but next week we'll be taking the train.
He'll be staying with his parents for several months while his father is in recovery.
Will you be starting work earlier with your new job?

Future perfect

We use the future perfect simple (will/won't have + past participle) to talk about something that will be completed before a specific time in the future.

The guests are coming at 8 p.m. I'll have finished cooking by then.
On 9 October we'll have been married for 50 years.
Will you have gone to bed when I get back?

We can use phrases like by or by the time (meaning 'at some point before') and in or in a day's time / in two months' time / in five years' time etc. (meaning 'at the end of this period') to give the time period in which the action will be completed.

I won't have written all the reports by next week.
By the time we arrive, the kids will have gone to bed.
I'll have finished in an hour and then we can watch a film.
In three years' time, I'll have graduated from university.

Do this exercise to test your grammar again.

Grammar test 2

Future continuous and future perfect: Grammar test 2

Language level

Intermediate: B1
Upper intermediate: B2


Hello Ahmed Imam,

There is no facility for sending attachments. We generally answer questions relating to our own material, not to materials (tests or other material) from elsewhere so if your question relates to something like that then I'm afraid it is outside of out area in any case.



The LearnEnglish Team

Could you help me please?
Are both of these forms correct or only one? If so, what is the difference in meaning between them: Experts think that Cairo (will grow - will have grown) by more than half a million people next year.
thank you

Hello Ahmed Imam,

The first sentence is correct. It tells us tells us what the speaker believes will happen next year.


The second sentence needs a little change:

Experts think that Cairowill have grown by more than half a million people by next year.

Experts think that Cairowill have grown by more than half a million people by the middle of next year.

Experts think that Cairowill have grown by more than half a million people by the end of next year.

We use [will have + past participle] when we are talking about something which will happen before a time in the future. We don't know or don't say exactly when it will happen, but we know it will be before a certain point.



The LearnEnglish Team

The following sentences are from Future perfect simple (I will have worked eight hours) English Grammar Today Cambridge Dictionary. No. 1 and 3 have "next year" without "By" and they use the future perfect
1- Next month my parents will have been together for thirty years.
2- At the end of this month, they will have been in their house for one year.
3- Next month I will have worked for the company for six years.
Thank you

Another problem, please: What is meant by each one of these?
By the end of next year, the government will build a new school in the village.
By the end of next year, the government will have built a new school in the village.
Thank you.

Hello Ahmed Imam,

In this context there is very little difference.

Both sentences tell us that the completion of the school will be before the end of next year. The difference is that in the first sentence the building has not yet begun. In the second sentence we do not know if it has begun or not.



The LearnEnglish Team

Is there a difference between "think of" and "think about"?
Please, Help. I'm totally confused after I have been searching online.
Ex: I often think (of, about) the time we spent in Rome that I can't forget.
Thank You.

Don't come at 2:00 Am you''ll find nobody at home we'll be parting at Las Vegas club, you may come either earlier before that time or later 3 hours after we'll be getting back home.

Is my sentence correct?

Hello !
Is it correct to say : - I will finish in an hour and then you can use the computer.
as an alternative to previous sentence frrom this lesson :'' I'll have finished in an hour and then you can use the computer.''

Thank you !

Hello Abfalter Cristian,

Both of those sentences are correct, but there is a slight difference in meaning.

Your version (I will finish) tells us when you will finish exactly. It is effectively a promise to stop using the computer at a given time.

The original version (I'll have finished) does not give us an exact time, but rather a latest possible time. In other words, the person might finish in an hour, or in half an hour, or in five minutes. Of course, the suggestion is that something like an hour will be needed, but in terms of grammar the structure tells us only that the speaker will finish some time before an hour has passed.



The LearnEnglish Team