Question

when do we use future Perfect continuous tense? give an example.​

Answer 1

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The Future Perfect Continuous Tense is used to describe an action that will be in progress at or around a time in future.

For example,

(i) I shall have been writing for half an hour when this lesson ends.

Answer 2

Answer:

It expresses longer actions or states  some specific event for along time or time in the future.

For example: Ram starts waiting at 9am.

We will be leaving the theatre before you come home