What are the two modal verbs we use to express obligation?
must / have to
must / should
must / mustn't
can / mustn't
Choose the correct modal verb for prohibition
don't have to
shouldn't
can't
mustn't
We generally use it when we talk about no obligation
have to
must
should
don't have to
Which modal verb is used for advice or recommendation?
must
should
need to
might
In modal verbs which is NOT a form of advice in AFFIRMATIVE?
have to
must
shouldn't
should
Which is a similar idea of You need to remember to do your HW every day
You must remember to do your HW
You can remember to do your HW
You have remember to do your HW
You should remember to do your HW
Which sentence expresses the same idea of It is obligatory to wear a uniform every day
You have to wear a uniform every day
You can wear a uniform every day
You don't have to wear a uniform every day
You mustn't wear a uniform every day
Which sentence has the same idea of It is prohibited to chew gum in the laboratory
You don't have to chew gum in the laboratory
You must chew gum in the laboratory
You mustn't chew gum in the laboratory
You have to chew gum in the laboratory
What is the correct form to say advice or recommendation in NEGATIVE?
shouldn't
must not
should
don't have to
Which sentence describes the same idea of: It isn't necessary for students to wear the uniform
Students should't wear the uniform
Students mustn't wear the uniform
Students don't have to wear the uniform
Students must wear the uniform
You _____ use the my phone without my permission.
must
mustn't
should
don't have to
