2. MUST MAY SHOULD

4. MAY

5. MUST

7. SHOULD

8. can Ability Possiblity Permission saber/ser capaz poder may Permissionpoder must Obligation /necessity ter que mustn’t Prohibitionser proibido should Duty Advice dever

9. must mustn’tmustmustn’t

10. CANSHOULD MUSTMUSTN’T You ____________ fight at school. mustn’t

11. CAN’TSHOULD CANMUSTN’T YOU_____________respect elderly people. should

12. SHOULDN’TCAN CAN’TMUST You_________always walk your dog on a leash. must

13. MUSTN’TCAN CAN’TSHOULD You___________ stay in bed if you have flu. should

14. MAYCAN SHOULDN’TSHOULD _______ I ask you a question, sir? May