In this article we will discuss how and when to us Should, Must, and Have to in Academic English. You will find explanations and lots of examples, which will support you in your learning process.
- We use “Should” in order to express an opinion, to give advice or in order to ask for advice:
You look tired. I think you should have some rest.
What should I say when I speak to him?
I believe nurses should have higher salaries and longer holidays.
- Furthermore, we can use “Should” in order to express our expectations.
She should arrive any minute.
She should have arrived by now.
- Finally, we can use “Should” in order to express a regret about some past action.
You should have been more careful.
I should not (or shouldn`t) have said that.
- We use “Must” in order to express a necessity felt by the speaker.
He is very ill. You must call a doctor now.
This is the best book I have ever read. You must read it too.
We must not (or mustn`t) lose the match tomorrow, or we will be out of the tournament.
- Moreover, we can use “Must” in order to express prohibition.
You must not use your mobile devices during exam.
You must not be late for your interview tomorrow.
- Finally, we can use “Must” to express an assumption.
You must be tired after your very long day.
- We use “Have to” in order to express an external obligation.
You have to make an appointment in order to speak with him.
She has failed her exam. She has to retake it soon.
- Moreover, we can use “Have to” to express a necessity or obligation in the past.
She was very ill. We had to call the doctor immediately.
She was very busy. I had to make an appointment to see her.