Sentence examples for is or not from inspiring English sources

Whether it is or not isn't important.

So I don't know if it is or not.

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

No one can say whether he is or not.

The experiments show that the model can reflect the curriculum system is or not reasonable.

They aren't necessarily unsafe; the FDA simply hasn't determined whether it is or not.

And how to decide whether it is or not, they'll be Tuesday's topic.

But then the diary realises that it doesn't care if he is or not.

"Whether people think there is or not, I'm not really bothered, to be honest with you".

"In the world of the all-volunteer army, I don't know if it is or not".

He seems to think that anything that seems old--never mind whether it is or not--must be in the public domain.