Future Perfect Tense
|
Affirmative |
subject+will have/shall
have+V3+object |
James will have eaten rice. |
|
Negative |
subject+ will not have/shall not
have +V3+object |
James will not have eaten rice. |
|
Interrogative |
Will/Shall+subject+
have+V3+object? Wh+will/shall +subject+have+V3+object? |
Will James have eaten rice? What will James have eaten? |
|
Passive |
object
+ will have/shall have+been+V3+ by + subject |
Rice
will have been eaten by James. |
The Future Perfect is used:
(a) To express the idea that something will occur before another action in the future:
ü By
six o'clock, the sun will have set.
ü By
the time we arrive, everyone will have gone.
ü By
the time we will meet again, I will have left America.
ü They
will have completed the project before the deadline.
(b)Adverbs of time: It often occurs with 'before+ future time (tomorrow, then, next week, the end of this month, year etc.) or time clause.
ü By
the time, she returns I will have completed my project work.
ü When
he calls, I will have left home.
ü By
2050, doctors will have found the cure for cancer.