One common way to divide the different types of English grammars available is to label them prescriptive or descriptive, though a grammar may contain elements of both. We would first describe the terms “prescriptive and descriptive”.
- DESCRIPTIVE GRAMMAR:- 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.
- PRESCRIPTIVE GRAMMAR:- A prescriptive grammar lays out rules about the structure of a language. Unlike a descriptive grammar it deals with what the grammarian believes to be right and wrong, good or bad language use; not following the rules will generate incorrect language. Both types of grammar have their supporters and their detractors, which in all probability suggests that both have their strengths and weaknesses. Writers were concerned to make rules about how people ought to speak and write, in conformity with some standard they held dear. They were not concerned with ascertaining first how people actually did speak and write.