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The future perfect simple and continuous


I. The future perfect simple:
Examples:
By theend of this week , I will have revised all my math lessons.
I’ll have handed it before Thursday
I’ll have finished it before the dead line
She will have finished before 9 o’clock.
I will not have improved my English by the time I finish this course.
Will you have finished studying Spanish by the end of the next year?

a. Form:
Affirmative: S+ will+have+ the past participle of the verb
Negative: S+ will+not + have+ the past participle of the verb
Interrogative: will+S+have+ the past participle of the verb?

b. use:
We use the future perfect simple when we want to speakabout an action or event completed or done before a particular time in the future.
● Example: Fatima wants Samir to attend her party.
Samir will have the exam on 1 st June.
Fatima will have the party on 3 rd June
Samir will have finished his exam by the 3 rd June and hewill be able to attend the party.
C. some time expressions that are used with thefuture perfect simple:
By the end of this year/ week/ month……// by the 24 June// by that time//by next October
In two months time// by the year 2030// this time next year// in sevenyears time
By the mid of this century// before Monday

II. The future perfect continuous:
Examples:

You will have been waiting for more than two hours when her plane finally arrives
They will have been talking for over an hour by the time Jane arrives.
Jameswill be tired when he gets home because he will have been jogging for over an hour
You will have been waiting for more than two hours when her plane finally arrives
You will not have been waiting for more than two hours when her plane finally arrives.

A. form:
Affirmative : S+ will +have + been + verb + ing
Negative: S+ will +not + have + been + verb + ing
Interrogative : will + s+have + been + verb +ing ?

B. use:
We use the future perfect continuous to show that something willcontinue up until a particular event or time in the future. “For two hours”,“for two weeks”, “for five minutes”…..are all durations which can be used withthe future perfect continuous.