obligation, prohibition, suggestion

• Suggestion

• opinion

• obligation

• prohibition

• must

• should

• must not

• don't have to

• at school

• at the zoo

• at an office

• in a cinema

• To warn people not to push the door

• To advice people not to sit beside the door

• To warn people not to lean against the door

• To advice people not to stand before the door

5

• You must not feed the tigers

• You should feed the tigers

• You are feeding the tigers

• You must feed the tigers

6

• tame

• funny

• beautiful

• dangerous

• not cut

• not keep

• not water

• not walk on

8.

• I don't want to finish

• I must not finish

• I have to finish

• I can finish

9

• you must go to bed late

• you must go to bed soon

• you should not go to bed

• you should go to bed late

• should

• must not

• should not

• don't have