You oughtn't eat so much junk food.

你不应该吃这么多垃圾食品。

He oughtn't be so rude to his parents.

他不应该对他的父母这么无礼。

They oughtn't drive so fast in the city.

他们不应该在城市里开得这么快。

She oughtn't spend all her money on clothes.

她不应该把所有的钱都花在衣服上。

We oughtn't ignore the importance of education.

我们不应该忽视教育的重要性。

They oughtn't to be late for school

他们不应该上学迟到

Oughtn't you to give us a chance to try ？

你难道不应该给我们一个尝试的机会吗？

Oughtn't we to give him a chance to try?

我们难道不应该给他一个尝试的机会吗?。

Oughtn't you to give us a chance to try ?

你莫非不应该给我们一个考试考试的机缘吗?。

Mr. Field: The workmen oughtn't to leave it without a notice.

Mr. Field：那些工人不应该连张告示都不留就离开。