For a number of weeks I've been going on and on about the probabilistic nature of English. How when we teach something like "you are," we are only teaching the most probable form of the 2nd person (singular or plural) form of the present simple of the verb "to be." Standard English is what most speakers agree as the most probable form. There are other forms. Some people call those sub-standard, I prefer the term "non-standard" or "extra-standard"to avoid a certain condescension on less probable forms. All forms should be welcome and all forms have a place--after all language is something we should all feel free to play with. It is one of our inalienable rights!! To demonstrate this point I have added a video this week by the late, great Frank Zappa.