1. would / could IF past perfect
Örnek: If Douglas had phoned me, I wouldn’t be upset now. = Eğer Douglas beni aramış olasaydı şimdi üzgün olmazdım.
2. would have V3 / could have V3 IF simple past
Örnek: If Tom were your real friend, he would have helped you yesterday. = Eğer tom gerçek arkadaşın olsaydı, dün sana yardım ederdi.
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