Sentence examples for comma is not necessary from inspiring English sources

A comma is not necessary.

Commas are not necessary with these.

Also, remember to separate the relative clause from the rest of the sentence using commas if the information is not necessary.

If an oxford comma is used in all lists, there should be a comma before et al., if the oxford comma is not used, it is not necessary.

On the other hand, it is not necessary to use a comma for an indirect quote - in other words, if you are paraphrasing a quote's meaning without recreating the precise wordage.

Experience is not necessary.

English is not necessary.

"This is not necessary.

Surgery is not necessary.

That is not necessary.

Black is not necessary.