Language Focus 1: should/must

Objectives

•  learn should and must.
•  talk about problems and give advice using should and must.

Should VS. Must

Should

• We use should to say what we think is a good idea or important to do.

You should organize a party for your birthday.

They should ask the teacher.

• Should is the same in all forms.
• We use an infinitive without to after should.

John should to get more sleep.

Must

• We use must to say what we think is necessary to do.

You must listen to this song. It’s fantastic!

• We use mustn’t to say what we think is necessary not to do.

We mustn’t forget to buy her a present.

• Must is the same in all forms.
• We use the infinitive without to after must.

You must remember that story. (You must to remember that story.)