It is not necessary for you to wait any longer
You need not wait any longer.
You are required to respect the national flag.
You must respect the national flag
She was able to read when she was three.
She could read when she was three
You are prohibited from entering my home.
You must not enter my home
It’s possible that Jane will visit Switzerland next year.
Jane could visit Switzerland next year.
I’m thinking about taking Spanish lessons.
I may take Spanish lessons
It’s possible the weather will be sunny tomorrow.
It might be sunny tomorrow
I'm sure she thinks I'm stupid.
She must think (that) I'm stupid
They're always buying new cars. I'm certain they have a lot of money.
They must have a lot of money
Perhaps she’s studying at the library.
She might be studying at the library
