It's possible that Simon will win the competition.

I'm sure that this answer is correct.

Perhaps Karl knows the answer to that question.

I've got such a bad memory that I forget things.

You _____ be very intelligent to have won first prize.

The quiz show _____ be over now. It's only 7:45 pm

The answer _____ be 183.

You _____ be the winner. You didn't get all the answers right.

The other team _____ be right, but I'm not sure.

We _____ be asked difficult questions. They could be easy.