Why is "Một cái bát canh gà" incorrect? Wrong classifier?
bái acts like a classifier, so you're doubling classifiers
It works, but it is redundant.
It is not redundant. It just has no any wearing solid structure for classifying , like liquid...So it is to have some measurement like bowl...
I thought that when using "một" it had to be followed by a classifier. Why not here?
I've answered to a similar question of yours here, so I'm just giving the link for those who might want to know the reason.
In the southern of Vietnam, We're just used to accepting with "tô" or "chén" in stead of "bát". " Một tô canh gà" or " một chén canh gà". You guys shouldn't say "bát".
the three of them are accepted. but the fact that you don't use it doesn't give you the right to declare "you guys shouldn't say 'bát'."