ANOTHER QUERY: For many expressions that fall somewhere between slang and dialect, there’s an accepted spelling–“gonna,” not “gunna”; “y’all,” not “yawl.”

But there’s one expression I may need to use in fiction soon, which I don’t think I’ve ever seen in print. It’s basically a slurring of “I’m going to,” and is pronounced–depending, as far as I can tell, on the relative “blackness” of the accent–“I’mawna,” “I’monna,” or “I’munna.”

Have any of you all seen this in print? How was it spelled? I really do not write dialect–it looks condescending and is often misleading since readers don’t all share Received Standard Pronunciation–but there are moments when “I’m going to” would be even more misleading, when the characters really would say “I’monna.”

Thoughts?