We use it

To talk about something that will continue till another situation in the future.

Key Words

They are the words and phrases that generally appear in this Tense sentences

- Before

- By the time

- By 2075

- For (some time in the future).

Subject + Will Have Been + Verb With -Ing in the End + the rest of the sentence.

The Affirmative sentences begin with the subject followed by the structure

Will Have Been

and the main verb of the sentence ends in -Ing (which indicates that the action will have been in progress).


I will have been studying for twelve hours by tomorrow morning.

She will have been cooking the whole day by tonight.

You will have been living here for twenty years next month.

Brad will have been driving for 5 hours by the time he gets home.

In October, I will have been working here for 15 years.

Subject + Will Not Have Been + Verb With -Ing in the End + the rest of the sentence.

In the Negative form, add "Not" to the modal verb "Will"

Will Not (Won't)

while the rest of the structure remains as in the Affirmative form.


Emma won't have been going to Misiones by the weekend.

I won't have been dancing by the time you get the party.

You won't have been travelling 20 hours by tomorrow morning.

I won't have been studying English every day by the end of the year.

They will not have been living in Madrid for 2 years in November.

Will + Subject + Have Been + Verb with -Ing in the End + the rest of the sentence...?

In the Interrogative form, the modal verb "Will" is written before the subject, the rest of the sentence remains the same as in the Affirmative.


Will they have been waiting for 1 hour by the time you arrive?

Will you have been travelling to Peru by next week?

Will Tom have been living with you for 10 years by 2016?

Will you have been studying for a long time by the weekend?

Will he have been living in Italy for a long time when you finally meet him?