Not only that, he wasn't entirely certain of his control.

"Because I am not entirely certain that he is dead."

He turned to face the crowd, not entirely certain of what to expect.

An odd message, he had not been entirely certain what to make of it.

I'm not entirely certain why she wants to see me.

No one was entirely certain why that should be the case.

"I wasn't entirely certain if you would be coming down before morning."

He watched her eyes, entirely certain of what she would find.

But officials said it was not entirely certain whether all three agreements could be ready in time.

Though I am not entirely certain it r would work, you know.