And people are always 'fixin to' do something.
That 'fixin' thing has always interested me. I have tried to say it for fun, but I can't get away with it because I don't believe it. So it comes across as fake and stupid.
You have the basic fixin', which means preparing or getting ready to do a thing. I'm fixin to put up a shed.
Then there is 'fixinaa' for 'fixintaa', as in we's fixintaa go eat. Now in this case you could use the a'fixin because it does not mean preparing but rather indicates that an action is imminent. As in, we's a'fixintaa go eat, or he's a'fixinaa' go, meaning the person is about to leave.
Now in some dialects, mostly Black but Whites as well, they will say fissin' instead of fixing or fixin'. As in I'm a'fissintaa go. At least fixing or fixin' is based on a real actual word. When you get to fissintaa', you are on your own at that point. That is a completely new made up word, that everyone in the South would understand without a blink.
But I have to agree with the poster who said that eventually everyone will speak exactly like me. That is to say, they will all finally speak normally.