Sentence examples for is that knows from inspiring English sources

Perhaps she accepted that there is something intrinsically uncertain about future contingents, whoever it is that knows them.

But the person who knows best should decide, whoever it is that knows… I don't know enough to decide.

The answer, alas, is that nobody knows.

The point is that nobody knows.

The truth is that nobody knows.

What is that we know for sure?

The difference is that he knew it.

It's that he knows.

There's nobody that knows".

His greatest consolation was that people knew.

Who was it that knew him?