"Then you don't know positively that he was robbing Wynant?"

"I do not know positively that it is true, but I believe it to be."

I knew positively that she could play anything.

I don't pretend to know positively how a prisoner might feel.

"It hasn't been identified, we're not sure, we don't know positively at this point," she said.

For all I positively know they may never even have spoken to each other.

We do not even positively know what the creature's name was.

If you know positively that a person is wrong, and you bluntly tell him or her so, what happens?

We know that positively, and they're as brave as anybody.

An invisible god that she positively knew to exist.