The Future Perfect Continuous
To understand the future perfect continuous we need to think about the present perfect continuous.
I have been playing the guitar for 3 years.
I started playing the guitar 3 years ago and I’m still playing the guitar.
We use the future perfect continuous when we want to talk about something which will continue until a certain point in the future. As with the future perfect simple, the keyword is “by“.
By next Christmas I will have been working here for 5 years.
By 6 o’clock she will have been sleeping for 12 hours.
Look at the construction:
|
subject |
will |
have |
been |
-ing form of verb |
|
|
I |
will |
have |
been |
living |
here for 1 year by the end of next week. |
|
They |
will |
have |
been |
sleeping |
for 12 hours in half an hour. |
|
We |
will |
have |
been |
going out together |
for 10 years by next Friday. When are we getting married? |