Future continuous and future perfect

Future continuous and future perfect

Do you know how to use phrases like I'll be studying or I'll have finished? Test what you know with interactive exercises and read the explanation to help you.

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.

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.

Average: 4 (155 votes)
Profile picture for user Tony_M

Submitted by Tony_M on Thu, 20/11/2025 - 09:18

Permalink

Hello,

A: Did you go to the gym yesterday? 

B: Yes, but I only did a light cardio session. 

A: Last week you told me that you want to set a new PR (personal record) in bench press on Monday; I thought you would've done it.

A expected B to have done it, but they didn't set a new PR; instead, B had a light cardio session. Can "would've done" be used in this context?

Submitted by Winnie0900 on Wed, 19/11/2025 - 16:18

Permalink
  1. Tomorrow, I'll be taking a plane to Argentina
  2. I'll have finished mopping the living room by 8 o'clock 
Profile picture for user Tony_M

Submitted by Tony_M on Wed, 03/09/2025 - 00:12

Permalink

Hello,

The video "Jeremy Clarkson Why The Porsche 928?" is here 0:11.

In 1994 I was living in London, I got a call one evening from my mom to say that my dad was desperately ill in a hospital in Sheffield, and I needed to get there as quickly as possible. I had just taken a chicken out of the oven, I thought, “well, I'll take that for my mum because she won't have eaten,” ran outside and I had a 928 on test that week, and when I arrived in Sheffield, the chicken was still warm, and my dad was still alive.

Does "won't have eaten" mean "I suppose or presume she hasn't eaten" or does he mean "she won't have eaten by the time I arrive"?

Thank you

Hello Tony_M,

The form won't have + verb3 could be a prediction about the present or the future, depending on the context. Here, I think the context strongly suggests the former (I presume she hasn't eaten) but, of course, the speaker is also assuming that that will stil be the case when they arrive at the hospital.

Where there is potential ambiguity words and phrases such as 'yet', 'so far', 'by then', 'by the time I arrive' and so on can be used to add clarity.

 

Peter

The LearnEnglish Team

Thank you, Peter. 

Would the following sentence make sense? 

Would "would have take" show a lesser degree of certainty?

  • My friend sent me a really long message yesterday. I can’t even imagine how much time it will have taken. = (it probably took)

     

Hello Tony_M,

In this context there's no certainty involved as the speaker is not giving any estimate. Rather, the speaker is simply saying they have no idea. Given that, I don't think there's any difference.You could use will have taken, would have taken or simply took here.

If the speaker were making a guess then there would be a difference in certainty: 

...it will have taken hours... (more confident)

...it would have taken hours... (less confident)

 

Peter

The LearnEnglish Team

Hello again and thank you, Peter. 

You wrote: 

If the speaker were making a guess then there would be a difference in certainty: 

...it will have taken hours... (more confident)

...it would have taken hours... (more confident)

Which one is more confident? Will?

Do you need to improve your English grammar?
Join thousands of learners from around the world who are improving their English grammar with our online courses.