Students will be able to
- use the modal verb should and its negative form for suggestions and advice,
- use the modal verb must and its negative form for rules and laws, strong advice, and warm invitations,
- use closed question forms with the modal verbs should and must,
- understand and use the past tense form of should (should + perfect tense) and must (had to),
- understand the difference between the modal verbs should and must when used for stating obligations and giving advice.