The future perfect tense is used to describe an action or event that is expected or planned to happen before a particular time in the future. It is formed by will have + past participle
How to use the future perfect
1. Use this tense to say that an action will be completed at a certain time in the future.
- By next week Peter and Sarah will have been married for 10 years.
|Affirmative sentence:||will have + past participle||I will have run out of money before the end of the month.|
|Negative sentence:||will not have + past participle||I will not have run out of money before the end of the month.|
|Interrogative sentence:||will (subject) have + past participle?||Will you have run out of money before the end of the month?|
“will have” stays the same in all persons!