Future Perfect Continuous Tense

When we want to talk about an action that starts in the future and continues until a certain point in the future, we want to use the future perfect continuous tense. This tense consists of the words “will have been” and the verb’s present participle (when it ends in -ing).

How Do We Make The Future Perfect Continuous Tense?

Below you will find the structure of the future perfect continuous:

subject + auxiliary verb WILL + auxiliary verb HAVE + auxiliary verb BE + main verb
invariable invariable past participle present participle
will have been base + ing

In order to form a question using the future perfect continuous tense, we need to switch the subject and the auxiliary verb. In order to form negative sentences in this tense, we need to insert the word “not” between the words “will” and “have”. Study the following table:

subject auxiliary verb auxiliary verb main verb
+ They will have been shopping all day.
+ He will have been studying all weekend.
We will not have been reading a book.
She will not have been taking a nap.
? Will

(auxiliary verb)

they(subject) have been married for long?
? Will

(auxiliary verb)

she(subject) have been drinking coffee?

We commonly connect the subject and the auxiliary verb with a contraction when we talk or write.

I will I’ll
you will you’ll
he will he’ll
she will she’ll
it will it’ll
we will we’ll
they will they’ll

To join the subject and auxiliary word together in a negative sentence using the future perfect continuous tense, you will need to use the contraction “won’t”. Take a look at the following table:

I will not I won’t
you will not you won’t
he will not he won’t
she will not she won’t
it will not it won’t
we will not we won’t
they will not they won’t

Use Of Future Perfect Continuous Tense

We use the future perfect continuous tense when we want to discuss an activity that will happen before a specific time in the future. Look at the following examples:

  • You will have been an hour late if you stayed at dinner any longer.
  • I will have been studying for several hours before you arrive for our study session.

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