The audience seemed to love them all, and I'm sure with reason.

I've the feeling that he has been very busy of late, and yet I am not sure with what.

Are you sure you're prepared to deal with those questions?

Are you sure you've never been out of work with that attitude?

He wasn't sure at all, not with the way his head and stomach were making war.

Still it was hard to be sure of size, with nothing near them to judge by.

But don't be too sure even with her; she's been lying to herself for a long time.

I'm sure with so many fish in the sea, you'll soon find someone new coming into your life!

It was so difficult to be sure with a man in his condition.

I am sure with a little thought and effort we can do better than this.