2. I I can't afford the house because it's too expensive.
I don't have enough money to buy the house.
I would buy the house if it weren't too expensive.
3. If he had spoken (more) slowly, people could have understood him.
*Câu đk loại 3, o có thật trong quá khứ:
If+S, had+P2, S+would/could/might+have+P2
4. If today was/were Saturday we would go to the beach.
*Câu đk loại 2, o có thật ở hiện tại:
If+S+Ved, S+would/could/might+V-inf