Future Perfect

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We use this tense to express an action that will be finished before some point in the future.

Use
  1. Actions that will be finished before some point in the future

Common time expressions used in the Future Perfect:

  • Before
  • By tomorrow/7 o'clock/next month
  • Until/till
Form
In positive sentences:
Subject + Auxiliary verb + + Past participle
I/a dog etc. will have gone, seen, etc.

They will have graduated from from Cambridge by July 2009.

I will have retired by the end of the year.

I read 40 pages a day. If I keep up the pace, I will have read the book by Tuesday.

In negative sentences:
Subject + Auxiliary verb + + Past participle
I/a dog etc. won't have gone, seen, etc.

They won't (will + not) have graduated from from Cambridge by July 2009.

I won't have retired by the end of the year.

In questions:
 

Auxiliary verb + Subject + + Past participle
will I/a dog etc. have gone, seen, etc.

Will they have graduated from Cambridge by July 2009?

Will I have retired by the end of the year?


Test your understading

Future Perfect vs. Future Perfect Continuous




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