Third Conditional

if + past perfect, would have + pp for unreal past.

Examples

• If I had studied, I would have passed.

Key rules

• Form: if + past perfect, would have + past participle
• Use it for imaginary past situations and regrets
• The result did not happen because the condition was not met
• Could have and might have also work in the result clause

Common mistakes

• If I had known, I would told you → If I had known, I would have told you
• If she would have studied, she passed → If she had studied, she would have passed