TL;DR: "or not" is never required if the alternative is a simple negation of the stated proposition, but an "or" clause is required in, say, "You must choose whether to write …
"I walked out to not agree with him because silence denotes assent." The first leaves it unclear whether I disagreed with him; the second is quite clear. Even with the two …
It*is*n't vs Its*not. This obviously matters a whole lot for rhythm and rhyme. Sometimes (though rarely) it is worth avoiding the harsh 's' sound from it's not due to microphones' …
Not is the general negator for verb phrases, including predicate adjectives and nouns. In a verb phrase, not occurs immediately after the first auxiliary verb. If there is no auxiliary …
I want to use the "not A but B" structure to focus attention on a certain perspective. I saw the dead bodies of a mother and her son. This is the statement of fact. I want to use the …
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