Assume that we get back, which isn't sure, by any means.

It might help reduce disease, but she wasn't sure by how much.

I was sure by this time Ramirez knew my car.

How can I be sure by car is safe for my child?

We weren't sure, not by a long way, but suspicious enough to take no chances.

But he's sure by the time the team gets down to one practice a day, he'll be fine.

That toll will rise, though no one is sure by how much.

I was pretty sure of my man by this time.

In our souls we have never been sure by whom.

He was sure that just one bite would wipe him out, by the rules of the game.