another standard to come ?

actually i've got a question about some estuary-way-of-speaking features which are, i've been told, becoming increasingly widespread (not only in London). so, the first about the grammar - can you talk about the generalisation of the third person singular form

i buys some food

and, the second - the generalization of past tense of 'to be' - was - smh like

we was celebrating that ocсasion.

are these forms, these developments, now increasingly to be heard in the public domain in your area and, do you speak so, too ?

That's how Maoris talk! And wiggers, people who want to sound uneducated for the sake of sounding uneducated!

In America, "we was" is associated with "Ebonics". In some circles, it's considered acceptable, and even intolerant to not accept it, but as far as I'm concerned, it's outrageously bad grammar, and no one who wants to be taken seriously should use it. A similar phrase is "he don't".

I once heard that using "is" instead of "are" is common in London or at least around there among young speakers. Of course I might be wrong... I just read a comment on that once, no one knows how accurate it was. If I am not mistaken, I remember reading they say "How is you?" instead of "How are you?". Well, Ali G talks that way, but he's... a comedian, LOL.

Or, at least, he's a person who is alleged to be funny.