The Third Conditional

We often use the third conditional to express regrets, missed opportunities, or things that we wish had happened differently. It helps us paint a picture of an alternate past—one that didn't happen, but we can imagine.

The third conditional is a grammatical structure used to discuss unreal situations in the past and their hypothetical outcomes. It involves combining two parts of a sentence: the first part begins with "If" and uses the past perfect tense (had + past participle), representing the unreal condition in the past. The second part uses "would have" + the past participle, expressing the hypothetical outcome or consequence of the unreal situation.

Structure

If + past perfect (had + past participle)

This sets up the unreal condition in the past.

Would have + past participle

This expresses the hypothetical outcome or consequence of the unreal situation.

Examples:

If I had known you were coming, I would have baked a cake.
She would have passed the exam if she had studied more.
If I had known you were coming, I would have baked a cake.
She would have passed the exam if she had studied more.