> "Nah man I aren't gonna" <-- this is wrong Well, yes, because the first person singular of to be is am, not are. It works fine with I am or you are. > I'm n

> "Nah man I aren't gonna" <-- this is wrong Well, yes, because the first person singular of to be is am, not are. It works fine with I am or you are. > I'm not gonna do that <--- looks good to me > You aren't gonna need that <--- also looks good to me 'You aren't gonna need it' looks weird because it deviates from the stock phrase YAGNI, but it's not wrong.