English grammar, vocabulary, and listening comprehension exercises
English grammar exercises and tests
English grammar exercises and tests


Topic: CONDITIONALS/THE THIRD CONDITIONAL 1

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level: Intermediate (B1/B2)







REMEMBER: The third conditional is used to talk about unreal situations in the past (things that were impossible, that didn't happen, etc.) - Choose the correct response for each of the sentences.



1. If she hadn't told him, he _________.
  will never find out
  would have never found out

2. I _________ this if you hadn't asked me.
  would never have done
  didn't do

3. If I _________ about this, I would have told you.
  know
  had known

4. If they ________ to rest they would not have been so tired.
  have stopped
  had stopped

5. I ________ that he's 38 years old if he hadn't told me.
  wouldn't have guessed
  didn't guess

6. If I hadn't seen that movie last week, I ________ to see it with you yesterday.
  would go
  would have gone

7. If you ________ the money that you owe me, I would have been able to go out last night.
  had returned
  returned

8. Thomas wouldn't have bought the jacket if it ________ on sale.
  hadn't been
  wouldn't be

9. If you _________ me, I wouldn't have known about the party.
  haven't called
  hadn't called

10. Tina would have called you if you ________ her your number.
  would give
  had given


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GRAMMAR REVIEW! The third conditional

The third conditional is used to talk about hypothetical situations in the past—things that didn't happen, and what the result would have been if they had. It's often used to express regret, criticism, or just to imagine alternate outcomes.

Structure:
If + past perfect, would have + past participle

Examples:
If I had studied harder, I would have passed the exam.
(But I didn't study hard, and I didn't pass.)
If she had left earlier, she wouldn't have missed the train.
(She left late and missed it.)
They would have won the game if they had practiced more.
(They didn't practice enough, so they lost.)

Quick Formula:
Condition (If...): past perfect → had + past participle
Result (Main clause): would have + past participle

Common Uses:
• Regret: If I had known, I would have come earlier.
• Blame: He wouldn't have failed if he had listened.
• Speculation: If we had taken the other road, we might have avoided traffic.

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