Sentence examples for know whether this from inspiring English sources

"I don't know whether this is coincidence.

How could he know whether this theory was right?

We can't possibly know whether this is true.

I don't know whether this will become an annual event.

But nobody seems to know whether this can be enforced.

I don't know whether this still happens much today.

I don't know whether this is a gnostic idea precisely.

"I don't know whether this is or not.

I do not know whether this statement is true.

I want to know whether this can be done.

He does not know whether this activity is ongoing.