"Yes, but until when?"

Translation: Sì, ma fino a quando?

[tmac876]

Just curious, but why can't you use "ma finche' quando"?

[lookatemma]

in italian they use to say "finchè" in affermative sentences

[Hannybobanny]

Duolingo tells me correct answer is.... 'sì, ma fino a quando?'
It was rejected when I missed out the 'a'
Can anyone tell me why?

[knurse1]

I have the same question.

[undomielle]

I was wondering the same and from what I've seen, it seems "Sì, ma finqué quando?" means more or less the same thing.
However, I am also wondering if the concept of time is already included in "finqué" and quando is not needed here (?). In other words, is "fino a quando" more or less the same as "finqué quando", or as "finqué"?
..Or are they different? Thanks!

[theelox]

Why is "...entro quando" rejected?

[IzzettinEf]

is finche bein used in affermative sentences? and a negative?

[Tracie279235]

I read this whole thread, and still don't get it. I wrote, "Si, pero finchè quando?" I missed it, according to the DL underline hints, because of "a fino". DL said I should have said "Sì, però fino a quando?" I don't understand why "finche"--which means "until"-- is wrong, and "fino a" is needed in this case. I found this, if it helps others, but I'm still not getting it.

https://www.duolingo.com/comment/1884889/Finche-vs-Fino