I just tested out the classic “She working” vs “She be working,” and the machine got it backwards. It can’t translate to AAVE, but it probably can appear to be well enough for people who wouldn’t know the difference. In terms of available written materials just by population and historical access it seems like there would be way more incorrect white imitations of AAVE to draw from than its correct usage. Like a lot of LLM issues, it’s been a problem for a loooong time but is now being put into overdrive by being automated.