She wont go to school if she doesnt feel better

-> unless

1. She won't go to school if she doesn't feel better.

→ Unless she feels better, she won't go to school.

Cấu trúc câu Unless:

Unless + S + V(simple present), S + will/can/shall + V

Câu có IF NOT nên ta dùng cấu trúc Unless, bỏ doesn't đưa về khẳng định, vế còn lại giữ nguyên.

Unless she feels better, she won't go to school.

`-` Unless với câu điều kiện loại 1

`-` Unless `+` S `+ `V , S `+` will/can/shall `+` V