Introduction
The future perfect describes an action that will be finished or completed in the future.
Form
The future perfect is formed by combining will have with the past participle:
You will have seen me walk across the stage.
They will have visited the museum.
Negative Form
Simply add not:
We will not have managed that.
Asking Questions
Use the regular form:
Will he have gone home?
Sample Uses
Actions Completed in the Future
At the end of our trip we will have visited twenty countries.
I don’t think I will have completed the assignment by then.
As the examples show, the future perfect is often used to refer to an action completed before some other event or moment.
More Information
For more information, please see our introduction to all twelve verb tenses in English.