Future Perfect Continuous Tense

Method

Subject + will have/shall have + been + verb(First Form) + ing + object

Example:

I shall have been working at the hospital for two years next month.

They will have been flying to London  for 4 hours  by this time tomorrow.

Negative Sentences

Method

Subject + will not have/shall not have + been + verb(First Form) + ing + object

Example:

I shall not have been working at the hospital for two years next month.

They will not have been flying to London  for 4 hours  by this time tomorrow.

Interrogative Sentences

Method

will/shall + subject + have + been + verb(First Form) + ing + object

Example:

Shall I have been working at the hospital for two years next month.

Will they have been flying to London  for 4 hours  by this time tomorrow.

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