12. learn
13. will have
14. looked
15. would understand
16. would arrive
17. stopped, would happen
18. press
19, cycle
20. will miss
21. had
22. would support
23. will phone
24. don't wear
*ĐK loại 1: trái với tương lai
If + S+ V(s/es), S + can/may/will/... + V
eg: if you don't hurry up, you will be late.
ĐK loại 2: trái với hiện tại
If+ S + V(ed/ bất quy tắc), S+ would/ could/ might/...+ V
eg: If I had a lot of money, I would buy that house .
