GRAMMAR & STRUCTURE
Future Perfect Continuous

Definition

The future perfect continuous tense describes a continued action at some point in the future.

Example

By the time he retires at the age of sixty-five, he will have been working fifty years.

Explanation

The future perfect:

• has the form will + have + been + verb-ing.
  For example: He will have been travelling for six months by the time he goes to Spain.

• describes continued actions that are continuing at a specific point in the future.
  For example: We should hurry because Barbara will have been waiting for us for ten minutes already.

• uses "not" in negative form.
  For example: We're early, so Barbara will not have been waiting for us yet.

Related Sections

Future Perfect
Past Continuous