Future Perfect

• CEFR B2
• Grammar
• Printable
• Answer key

Future Perfect is a printable grammar worksheet for English language learners at CEFR level B2. It covers actions completed before a future point, with 5 exercises and an answer key.

We use the future perfect (will have + past participle) to talk about an action that will be completed before a specific point in the future.

It is often used with time expressions such as 'by', 'by the time', 'before', and 'by then'.

The future perfect emphasises completion and achievement — it shows that something will be finished, done, or reached by a future moment.

Examples

• By next Friday, I will have finished all my exams.
• By the time you arrive, the meeting will have started.
• She will have lived in London for ten years by next spring.
• Will you have read the report before the meeting tomorrow?
• They won't have built the new bridge by the end of the year.
• By 2030, scientists will have developed a cure for several diseases.
• He will have saved enough money to buy a car by August.
• By the time she retires, she will have taught over 2,000 students.

What's in this worksheet

1. Complete with future perfect
2. Correct the mistake
3. Complete with 'by...'
4. Write the sentence
5. Mixed gap fill

Common mistakes

• By tomorrow, I will finish my essay.  →  By tomorrow, I will have finished my essay. Use future perfect (will have + pp) after 'by' when something will be completed before that point.
• She will have been finishing the project by 5pm.  →  She will have finished the project by 5pm. Future perfect uses 'have + past participle' — not the continuous form with 'finishing'.
• By the time you arrive, she will already leave.  →  By the time you arrive, she will already have left. Future perfect = will have + past participle. Don't forget 'have'.
• They won't have not finished by then.  →  They won't have finished by then. Only one negative: 'won't' is already negative — don't add 'not' again.

Speaking prompts

• What will you have done / achieved by the time you are ten years older than you are now?
• By the end of this week, what tasks will you have completed?
• Think about a goal you have. When will you have achieved it? What will you have done to get there?
• What do you think the world will have changed in by 2050?