1) You are so lazy, that's why you fail in the exam. -> If......... -> Were........... 2) He was punished by his mother -> If only..............

`1`. If you don't lazy , you won't fail the exam .

Hoặc : If you were  lazy , you would fail the exam

`->`  Were you lazy , you won't fail the exam .

Công thức: 

Câu điều kiện loại 1:
If + S + V/ Vs,es + O, S + will/ won’t + V + O
= Should + S + (not) + V + O, S + will/ won’t + V + O
`a.`If it rains, I will stay at home = Should it rain, I will stay at home
`b` . If he doesn’t come, I will call you = shoud she not come, I will call you.
`1.` Câu điều kiện loại 2:
If + S + were ……., S + would/ wouldn’t + V + O
+ Vpast + O
= Were + S ……./ to V + O, S + would/ wouldn’t + V + O
a. If I were you, I would buy this car = were I you, I would buy this car.
b. If I knew English, I would call her = were I to know English, I would call you.
`2`. Loại 3: không thẻ xảy ra ở quá khứ.
+ form :
- If + S + had/ hadn’t + Vpp + O , + S + would/ wouldn’t + have + Vpp + O
= Had + S + (not) + Vpp + O, + S + would/ wouldn’t + have + Vpp + O
a. If I had met you yesterday, I would have invited you to the party.
`-` Had I met you yesterday, I would have invited you to the party.
Chú ý: but for = without = if it hadn’t been for + Ving/ ttsh + N/ the + adj + N : nếu không vì
a. If you hadn’t helped me, I wouldn’t have passed the exam.
`-` Had you not helped me, I wouldn’t have passed the exam.
`-` But for + your help, I wouldn’t have passed the exam.
Without + being helped,

`2`.  If only he hadn't been punished by his mother.

Công thức: If only = S+ wissh ( Chia theo thì ) 

`-` S + wish(es) + (that) + S + V-ed(HT) 

`-` S + wish(es) + (that) + S + had + V3(QK)

`-` S + wish(es) + (that) + S + would/could + V  (TL)