It is not ever or not never?

The correct phrasing is not ever because not never is a double negative.

For example, one could say “I have not ever been to Paris” or “I haven’t ever been to Paris, but not “I have not never been to Paris” or “I haven’t never been to Paris.”

Mistakes like “not never” sometimes happen when you’re busy writing, but not to worry! QuillBot’s free Grammar Checker can instantly find and fix these errors.