6 if he didn't eat a lot of chocolate , he wouldn't be very fat
7 if they didn't get up late , they wouldn't be late for school
8 if susan didn't eat four cream cakes , she wouldn't feel sick
9 if you didn't get a visa , you could visit moscow
10 if he didn't phone me , he would get some imformations

1.if nam didn't eat so much chocolates he wouldn't have been so fat.

Chỗ này hầu hết đều là third conditional nha bạn
cấu trúc :
Subject+past perfect +subject +would have+V(past participal)
Câu nãy phải là hasn't eaten nhé. Sorry
.