Should is used to give advice or opinions.

eg. The teacher should be more patient with the students.

 

Should is usually used after I think / I don’t think / Do you think…?

eg. I don’t think she should continue her career in advertising.

 

Should is not as strong as must or have to.

 

We can use should in the following situations:

  • when something is not right or it is not what you expect

I wonder why she is here. She should be at school.

  • when we expect something to happen

He’s been working so hard for the Olympics, he should win.