Mixed conditionals are a combination of two types of conditional patterns, usually the second and third conditional.
• Third second mixed conditionals
With the third second mixed conditional, a past "condition" (the 3rd conditional) precedes a present "result" (2nd conditional).
If I had (+ past participle) …, I would (+ infinitive) …
Instead of 'would', we can use 'could' or 'might'.
- If I had gone to bed late, I’d be tired today.
We use a third second mixed conditional when we imagine present actions or situations that are the result of an imaginary or hypothetical situation in the past.
- If I hadn’t called you yesterday, you wouldn’t be here today.
- Where would you stay if you hadn’t found a hotel this morning?
• Second third mixed conditionals
With the second third mixed conditional, a present "condition" (2nd conditional) precedes a past "result" (3rd conditional).
- If I did …, I would have (+past participle) …
- If I could speak French, I would have understood the song.
We use a second third mixed conditional when we imagine a situation in the past that is the result of an imaginary or hypothetical situation that is still true.
- What would you have done if you were me?
- If it wasn’t so cold in this country, we could have gone out yesterday.