The future perfect tense is only used in a few situations, but it’s still good to know it. The future perfect is composed of two elements
The simple future of the verb “to have” (will have) + the past participle of the main verb
Subject + will have + past participle of the main verb
He will have finished.
I will have finished.
FUNCTION
The future perfect tense refers to a completed action in the future. When we use this tense we are projecting ourselves forward into the future and looking back at an action that will be completed sometime later than now. It is most often used with a time expression.
Example
Here’s the positive:
By six pm tonight:
- I will have finished this book
- You will have studied the English tenses
- She will have cooked dinner
- He will have arrived
- We will have met Julie
- It will have stopped raining
- They will have left Japan
Here’s the negative:
By next week,
- I will not have finished this book
- You will not have studied the English tenses
- She will not have cooked dinner
- He will not have arrived
- We will not have met Julie
- It will not have stopped raining
- They will not have left Japan
‘Yes/no’ questions:
By next year,
- will I have finished writing this book?
- will you have studied all the English verb tenses?
- will she have graduated?
- will he have got married?
- will it have got colder?
- will we have met your boyfriend?
- will they have left their jobs?
‘Wh’ questions:
- When will I have finished writing this book?
- Why will you have studied all the English verb tenses by tomorrow?
- When will she have been here three weeks?
- Why will he have got married before June?
- Why will it have got colder by May?
- How will we have met your boyfriend by tonight?
- When will they have left their jobs?
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