I was going to the convenience store and asked my local friend how to ask in Chinese "Do you want anything?"
Her answer was: 你有想要买什么吗
I wasn't sure what to make of the 有 before the verb 想要 meaning "to want" and as a native speaker she could not explain it though she did understand my questions about its grammatical function.
Is it a kind of auxiliary verb in this sentence? Or is it a case of the special Taiwanese 有 that can be used for some references to the past but which also has other uses? Or is it something entirely different?