| Type | Structure | Example |
|---|
| 3 (unreal past) | if + past perfect, would have + p.p. | If I had known, I would have come. |
| mixed (past → present) | if + past perfect, would + base | If I had studied, I would be a doctor now. |
| mixed (present → past) | if + past simple, would have + p.p. | If I spoke Spanish, I would have got the job. |
Wish / if only (regrets and wishes)
| Meaning | Structure | Example |
|---|
| regret about the present | wish + past simple | I wish I had more time. |
| regret about the past | wish + past perfect | I wish I had listened. |
| annoyance, wanting change | wish + would | I wish you would stop talking. |