Modal verbs

Modal verbs are very important to express different degrees of certainty. I really like that we can use them to talk about the present, the past, and the future.

Some examples :

We, the students, must do all our homeworks on time.

They're kind of weird. They might be the thieves.

If it had rained all day, it must have been very wet outside.

I sow her taking some milk in the supermarket. It must have been bought to be given to the children.

He says that he has visited his brother, it couldn't have been possible; his brother is in New York.

If professionals specially teachers, doctors, police officers and firefighters had good salary this country should be better.

She has a lot of buildings, she should've worked so much.

She doesn't want pizza. She might have had dinner at home.