Changes

These grammatical systems were referred to by Chomsky as ''transformational grammars''.  Other linguists have developed variants; together these are known as ''generative grammars''.  

These grammatical systems were referred to by Chomsky as ''transformational grammars''.  Other linguists have developed variants; together these are known as ''generative grammars''.  

The basic idea of a generative grammar is to provide a set of rules which are capable of generating all possible grammatical sentences in some language; the rules also constrain generation so that only grammatical sentences are generated. The rules can also be used in reverse to parse a sentence and check if it grammatical.

The basic idea of a generative grammar is to provide a set of rules which are capable of generating all possible grammatical sentences in some language; the rules also constrain generation so that only grammatical sentences are generated. The rules can also be used in reverse to parse a sentence and check if it is grammatical.

==Simple example==

==Simple example==