CONDITIONAL TYPE 3: IF S HAD (NOT) VPP, S WOULD/COULD/MIGHT... V
`=>` Dùng để diễn tả giả thiết không có thật trong quá khứ
`1.` If I hadn't studied lazily, I would have passed the exam.
`2.` If I had known her address, I would have visited her.
`3.` If she had had enough money, she would have bought a new car.
`4.` If Chung hadn't been busy yesterday, he would have gone to the meeting.
`5.` If Minh had studied hard, he would have gotten good marks.
@ `Ly`