Future Perfect Simple

1. Use of the Future Perfect Simple

We use the future perfect simple to say that something we be done, achieved or finished by a certain point in the future.

2. Form

will + have + past participle

3. Example

• The builders say they will have finished by next Thursday.
• At Christmas we‘ll have been friends for two years.

4. Diagram showing usage of the Future Perfect Simple

The emphasis is on the action, not the duration.