whether or not

Idioms  

1. Also, whether or no. Regardless of whether, no matter if. For example, Whether or not it rains, we're going to walk to the theater, or She plans to sing at the wedding, whether or no anyone asks her to. The negative element in these constructions may also follow the subject and verb, as in I have to attend, whether I want to or not. [c. 1600]

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Example Sentences

As the last hints of summer faded, Major Puff was deep in deliberation on whether or not to migrate south.

From Literature

Jay's review, which was announced in December, was designed to inform a future decision on whether or not there should be a judge-led public inquiry.

From BBC

I don’t know whether or not he is a narcissist, but from your retelling, he is someone who has always looked out for himself.

From MarketWatch

Several criticised the process - with the Senedd having no say in whether or not assisted dying is actually made legal, and voting while the Lords are still considering a large number of changes.

From BBC

“If it wasn’t, everybody would be doing it. And so that’s where it’s really essential to build it with stakeholder input and explore whether or not it’s something that would really work here.”

From Los Angeles Times