Sentence examples for have not known from inspiring English sources

Patients have not known this.

But scientists have not known why.

How could we have not known?

I have not known their names at all.

How could we have not known?" he said.

She might have not known what to do.

"I have not known Bruce to be a basketball fan.

I have not known many more dramatic days than that.

The two men have not known each other long.

Readers have not known just where to put him.

Until recently, however, we have not known where and when these persistence gaps begin.