@spendius,
Quote:Weaal-hush mah mout, moi joisey hes a hawl in de sleef" for example.
We (all of us North Americans - southern and northern alike) call sweaters 'sweaters' - not jerseys ( or would that be jersies (plural)?).
And then there'd even be more nuance and differentiation depending upon if your speaker was white, black, hispanic, a debutante, etc., etc...you see what I'm sayin'? It's not as easy as it seems. You really need to observe and listen carefully.
That's what I love about the variety and hate about the presciptivism.
I think you're right - the correct grammar depends on the speaker and situation.