You .... apologise, it isn't necessary
must
must not
don't have to
You ... smoke here; smoking is not allowed.
mustn't
have to
don't have to
You ... go now; you can stay a bit longer
have to
don't have to
musting
Visitors in the zoo .... feed the animals.
have to
don't have to
mustn't
We ... cook more; there's enough food
having to
must
don't have to
You ... do something to solve this problem
must
musting
don't have to
I don't like these clothes, but I ... wear them at work.
have to
having to
must
Teacher: "You ... arrive on time for class"
must
don't have to
mustn't
You ... tell anyone; it's a secret.
don't have to
having to
mustn't
The doctor has put me on a strict diet. I .... eat more fruit and vegetables and do more exercise.
don't have to
musting
must
I .... be late. It's the most important meeting of the year.
musting
don't have
mustn't
You .... put salt in her food; the doctor said she can't eat salt.
haveing
haven't
mustn't
You ... drive so fast; we have a lot of time
must
don't have to
musting
Do you ..... work at night? This is a day off.
must
have to
mustn't
