I'm absolutely sure this ring costs a lot of money.
This ring MUST COST a lot of money.
Maybe they are just married.
They MAY BE just married.
I'm sure he is NOT Michael Jackson. He died years ago!
He CAN'T BE Michael Jackson. He died years ago!
Maybe we have some icecream at home.
We MAY HAVE some icecream at home.
I'm 80% sure it is a good idea to stay home today.
It COULD BE a good idea to stay home today.
There's a little chance the Math exam is easy.
The Math exam MIGHT BE easy.
I'm 100% sure the weather is hot there.
The weather MUST BE hot there
I'm defenitely sure this is NOT a real alien.
This CAN'T BE a real alien.
I'm 80% percent sure this is a good romantic comedy.
This COULD BE a good romantic comedy.
There's little chance that we find our cat today.
We MIGHT FIND our cat today.