How to Form the Future Perfect Continuous

The form of the future perfect continuous is: will + have been + v.ing.

Will is contracted to ‘ll. For example: I’ll, you’ll, he’ll.

Will not is contracted to won’t.

Question word question	How long will you have been waiting?
Positive Sentence	I’ll have been waiting for three hours
Negative Sentence	I won’t have been working for three hours.

Click on the links below to learn more about Future Tenses

Present Tenses with Future Meaning

The Future Simple – Will

Will vs. Going to

Future Plans – Going to and The Present Continuous

The Future Continuous

The Future Perfect