Here are examples of sentences in the future perfect tense:
1. Positive Sentences
I will have completed my homework by 8 PM.
She will have graduated from college by next year.
They will have finished the project before the deadline.
We will have traveled to five countries by the end of this year.
He will have saved enough money to buy a car by summer.
2. Negative Sentences
I will not (won’t) have finished my report by the time you arrive.
She will not (won’t) have learned all the material before the exam.
They will not (won’t) have cleaned the house by the time the guests come.
We will not (won’t) have seen the new movie before it leaves theaters.
He will not (won’t) have completed his training before the competition.
3. Questions
Will you have finished the assignment by Friday?
Will she have read the book before the discussion?
Will they have arrived by the time we start the meeting?
Will he have completed his tasks before leaving?
Will we have made a decision by the end of the week?
4. Uses
Action that will be completed before a specific future time: By 2025, I will have moved to a new city.
To indicate a deadline: She will have submitted her application by the due date.
Future assumptions about completed actions: They will have already eaten when we get there.