Not sure of her pregnancy until early spring, they had hoped she would be able to travel after the Rialla.

But the reader cannot be sure, until deep in the book's plot, which is which.

I wasn't sure about this until just a little while ago, but I think you should have that opportunity.

But she wasn't sure, almost until the moment she did it, that she would be able to finish.

She had not been sure until this moment.

He wasn't sure until right then that he actually could even walk.

I wasn't really sure until Sheila and then I knew.

Will not be sure until 2 months of taking this drug.

To tell you the truth, I wasn't entirely sure about it myself until this moment.

Especially, Harrington told himself, since he himself had not been sure of it until this very morning.