You must not to talk during the exam.
❌ Incorrect: "must not talk"
Can you to help me with this task?
❌ Incorrect: "Can you help me?
They mustn't leave the building before 5 PM.
✔️ Correct
He must finish the report by tomorrow.
✔️ Correct
Can he to come to the party?
❌ Incorrect: Can he come to the party?
not / must / you / use / phone / here
You must not use your phone here.
mustn’t / you / make / noise / here
You mustn’t make noise here.
a / we / break / now? / take / can
Can we take a break now?
join / us / can / they / for / lunch?
Can they join us for lunch?
I / ask / may / question? / a
May I ask a question?
Employees ____ use their phones during work.
can't / must not
Visitors ____ enter without checking in.
can't / must not
You ____ bring pets into the building.
can / may / could
You ____ leave early if you finish your work.
can / may / could
Students ____ participate in the extracurricular activities.
can / may / could
Carefully observe the picture displayed on the screen and form a sentence based on what you see.
You must not smoke here.
