Difference between should and ought to

 "Should" and "ought to" are both modal verbs that are used to express obligation or advice, but they have slightly different connotations.

"Should" suggests a recommendation or a preferred course of action based on common sense, social norms, or personal opinion. It implies that there is a right or best way to do something. For example, "You should study more to pass the exam" suggests that studying more is a good idea, but it's not an absolute requirement.

"Ought to" suggests a stronger sense of obligation or duty. It implies that there is a moral, ethical, or logical reason to do something, and there may be negative consequences for not doing it. For example, "You ought to tell the truth" suggests that telling the truth is not only a good idea but also the right thing to do.

In general, "should" is a milder expression of obligation or advice, while "ought to" carries a stronger sense of moral or logical obligation. However, the difference between the two is often subtle and can depend on the context or the speaker's tone. In practice, "should" and "ought to" are often used interchangeably.