The rule as a picture, 5 multiple-choice questions, 3 sentences to correct and a short writing task. Free to print and copy for your class or for self-study.
Want the explanation first? Read the Third Conditional lesson
Use the third conditional to imagine a different past and its result: things that didn't happen. If I had known, I would have come. Form: if + Past Perfect, would have + past participle.
If I had known, I would have come.
Write three sentences of your own that use this rule. You can use these phrases.
Answers will vary. Check that each sentence follows the rule on page 1, or paste them into Clarigram to have them checked.