📝 Student Instruction: Future Perfect Tense

1. When do we use Future Perfect?

• To talk about an action that will be completed before a specific time in the future.
  • By next year, I will have graduated from school.
• To show that something will be finished before another future event.
  • She will have left by the time you arrive.

2. Form

• Affirmative (+): Subject + will + have + past participle (V3)
  • I will have finished my homework by 8 p.m.
  • They will have built the house by next month.
• Negative (–): Subject + will + not (won’t) + have + past participle
  • I won’t have completed the project by tomorrow.
  • She won’t have arrived by 9 o’clock.
• Question (?): Will + subject + have + past participle
  • Will you have finished your work by 5 p.m.?
  • Will they have left before we get there?

3. Time expressions often used

• by + time → by tomorrow, by next week, by 2025
• before → before 6 p.m., before the meeting
• by the time → by the time you arrive

4. Examples

• By the time he comes, I will have cleaned the house.
• She will have written five emails before lunch.
• Will you have read the book by next Monday?

👉 Practice Example:
Change the verb into Future Perfect.

1. I (finish) my homework by 9 p.m. → I will have finished my homework by 9 p.m.
2. She (not complete) the project before the deadline. → She won’t have completed the project before the deadline.
3. (they / arrive) before we leave? → Will they have arrived before we leave?