A descriptive grammar
looks at the way a language is actually used by its speakers and then attempts to analyse it and formulate rules about the structure. Descriptive grammar does not deal with what is good or bad language use; forms and structures that might not be used by speakers of Standard English
would be regarded as valid and included. It is a grammar based on the way a language actually is and not how some think it should be.
See Also: Prescriptive Grammar; Syntax
Category: Learning and Teaching