Third Conditional




Third Conditional : Grammar and Spelling Tips



Third Conditional : Imaginary Past

The third conditional is used when we are talking about the past and imagining something different from what actually happened:


Condition Result What actually happened
Past Perfect WOULD HAVE + Past Participle
If I had known, I would have helped. I didn't know and didn't help.

IF Condition Result Certainty
past perfect WOULD HAVE+ past participle
If I had known, I would have helped. Although this didn't happen, the speaker is sure about the result.
If I had known, I could have helped. Although this didn't happen, the result is only a possibility.
If I had known, I might have helped. Although this didn't happen, the result is only a possibility.
If you had known, you should have helped. Although this didn't happen, it is only a good suggestion or piece of advice.






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