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).
Examples
I will have been studying for twelve hours by tomorrow morning.
British
American
She will have been cooking the whole day by tonight.
British
American
You will have been living here for twenty years next month.
British
American
Brad will have been driving for 5 hours by the time he gets home.
British
American
In October, I will have been working here for 15 years.
British
American
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.
Examples
Emma won't have been going to Misiones by the weekend.
British
American
I won't have been dancing by the time you get the party.
British
American
You won't have been travelling 20 hours by tomorrow morning.
British
American
I won't have been studying English every day by the end of the year.
British
American
They will not have been living in Madrid for 2 years in November.
British
American
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.
Examples
Will they have been waiting for 1 hour by the time you arrive?
British
American
Will you have been travelling to Peru by next week?
British
American
Will Tom have been living with you for 10 years by 2016?
British
American
Will you have been studying for a long time by the weekend?
British
American
Will he have been living in Italy for a long time when you finally meet him?
British
American
1 Key words used in this Tense and in the Future Perfect are the same.
2 Which of the following sentences is correct?
3 Where will she have been _____ ?
4 _____ you have been writing books?
5 She will have _____ wearing pink all her life.
6 The main verb is always conjugated in the "-ing" form.
7 The modal used in this Tense is would.
8 The Negative form of will is won't.
9 You will _____ been working there for 10 years tomorrow.
10 Kurt will have _____ studying for 3 hours in a few minutes.
11 Emily _____ for 6 hours by the end of the race.
12 They _____ been singing by tonight.
13 _____ you have been crying, Sam?
14 By 2050, I _____ in Mexico for 12 years.
15 She _____ lots of presents before Christmas.
