Question

In which situation would it be fine to use nonstandard written English?

writing an analysis of a Civil War battle for History class

quoting character dialogue in a literary analysis for class

writing an essay for a college application

writing an article for the school newspape

Answer 1

Quoting character dialogue in a literary analysis for class.

Reason: reproducing a character’s speech may require nonstandard spelling/grammar to show dialect or voice. For the other situations (Civil War analysis, college application, most school newspaper pieces) you should use standard written English unless quoting someone or clearly signaling a deliberate, contextual choice.