Future Perfect Continuous Tense


How do we make the Future Perfect Continuous Tense?

The structure of the future perfect continuous tense is:
subject+auxiliary verb WILL+auxiliary verb HAVE+auxiliary verb BE+main verb
invariableinvariablepast participlepresent participle
willhavebeenbase + ing
For negative sentences in the future perfect continuous tense, we insert not between will and have. For question sentences, we exchange the subject and will. Look at these example sentences with the future perfect continuous tense:
subjectauxiliary verbauxiliary verbauxiliary verbmain verb
+Iwillhavebeenworkingfor four hours.
+Youwillhavebeentravellingfor two days.
-Shewillnothavebeenusingthe car.
-Wewillnothavebeenwaitinglong.
?Willyouhavebeenplayingfootball?
?WilltheyhavebeenwatchingTV?
When we use the future perfect continuous tense in speaking, we often contract the subject and auxiliary verb:
I willI'll
you willyou'll
he will
she will
it will
he'll
she'll
it'll
we willwe'll
they willthey'll
For negative sentences in the future perfect continuous tense, we contract with won't, like this:
I will notI won't
you will notyou won't
he will not
she will not
it will not
he won't
she won't
it won't
we will notwe won't
they will notthey won't

How do we use the Future Perfect Continuous Tense?

We use the future perfect continuous tense to talk about a long action before some point in the future. Look at these examples:
  • I will have been working here for ten years next week.
  • He will be tired when he arrives. He will have been travelling for 24 hours.
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