Only if you are Ali G!!! :))))))))))))))))))))))))))

I would say. When thinking of "you" as a third person. "How is you?" - Like I'm asking about someone else, but it's basically you. I don't know, that sounds poetic. Though you shouldn't use it in everyday speech.

No Maryam, this is a bad language. I don't think if it is correct. I heard this only from illiterate people.

No. The conjugation for the verb to be for ''you'', is ''You are'', and it is not ''You is''. So that makes ''How is you?'' impossible as well.

Nowadays, a lot of people in/from the ghetto make up the majority of incorrect grammar phrases. They'd say "How is you doing?", "How you is?", "Is you gonna eat that?", "Who is you?" etc. and it all sound un-educated. All thanks to the BLM group.