Sentence examples for quite know from inspiring English sources

I don't quite know why.

You never quite know.

"Nowadays you never quite know".

"When you didn't quite know".

We don't quite know yet.

Seething about what, we never quite know.

I just don't quite know how".

I believe we'll never quite know".

I don't quite know when, though".

You never quite know who they are.

I just don't quite know why".