Great Regulars: One of the interesting things about

the word "grammar" is that many of its users think that it is self-evident that it refers to one thing: "the grammar" of the language. If only the matter were that simple. Whereas linguists are agreed that language has grammar, what they can't agree on is how to describe it.

from Michael Rosen: The Guardian: Sorry, there's no such thing as 'correct grammar'

~~~~~~~~~~~