I'm sure that Helen feels really lonely. Helen...
Helen must feel really lonely.
You're not allowed to park here. You...
You can't/mustn't park here.
I'm sure that Brenda isn't over thirty. Brenda...
Brenda can't be over thirty.
Maybe Tom is looking for a new place to live. Tom...
Tom could be looking for a new place to live.
Why aren't you at home revising for your exam? You...
You should be revising for your exam at home now.
Students are not allowed to leave the classroom. Students...
Students mustn't/can't leave the classroom.
It would be a great idea if Harry took a holiday. Harry...
Harry should take a holiday.
It is a bad idea to go into that abandoned castle at night. We...
We shouldn't go into that abandoned castle at night.
It looks like he is looking for something. He...
He may/might/can/could be looking for something.
It’s possible the weather will be sunny tomorrow. The weather...
The weather may/might/could be sunny tomorrow.
I'm sure she's at home. She..
She must be at home
I know that isn't Janet-She's in America. She...
She can't be Janet
I'm sure she thinks I'm stupid. She...
She must think I'm stupid
I bet I look silly in this coat. I...
I must look silly in this coat
I advise you to see a dentist.You...
You should see a dentist
You aren’t allowed to talk during the exam. You...
mustn't / can't talk during the exam
