`1.` If you want to take an Art class, you ought to choose a class at the weekend.

`->` ĐK1 : If S V(s/es) O, S + will/can... + V

`2.` If I had time, I would watch TV every day.

`->` ĐK2 : If S Ved, S would V

`1` If you want to take an Art class, you have to choose a class at the weekend.

`-` Câu điều kiện loại `1`:

`->` If + S + V(HTĐ), S + will/can/may/... + V

`2` If I had time, I would watch TV every day.

`-` Câu điều kiện loại `2`:

`->` If + S + V(QKĐ), S + would/could/might/... + V