18. Future Perfect

Describes an action that will be

before a specific future time.

Subject + WILL HAVE + PAST PARTICIPLE (V3)

- By (By 5pm, By tomorrow) - By the time

- "Call me at 6. I will have finished work by then." - "By 2050, we will have discovered aliens." (Prediction of completion). - "I won't have done it by Friday."