1. GIVING ADVICE SHOULD (Strong) HAD BETTER (Stronger) HAVE TO / MUST (Strongest) Tim said I should not smoke My Father said I had better not smoke You must not smoke on an airplane suggestions Rules / Laws

2. PRACTICE Principal: 3D, you should study hard. 3D, you had better be quiet during the lessons. 3D, you must not drink beer during the English lesson

3. Is it a suggestion or an order? Brother: You should not go to school today. Mother: Oh, No! You look sick. You had better not go to school today. Father: You have a fever of 50C. You must not play LOL. You must stay in bed and rest. Is that clear?