you don't have to
Вы не обязаны мне это объяснять.
You don't have to explain this to me.
Вы не обязаны помогать Тому, если не хотите.
You don't have to help Tom if you don't want to.
No, you don't have to.
You don't have to explain yourself to me.
Вы не обязаны кушать с Томом, но я бы этого хотел.
You don’t have to eat with Tom, but I’d like you to.