This is one of the sentences I hope I will never have to use.
I thought I would never have to use "czy on je zupę widelcem?", but then I found myself in Poland actually eating soup with a fork.
Oh that's your toothbrush? I was using it to scrub the toilet.
Would "Czy ty używasz moją szczoteczkę do zębów?" also be correct?
In colloquial speech yes(I think), but I would rally recommend not to take on bad habits of some Poles – normally, "używać" takes genitive, but some people are indeed confused and use accusative with this verb, instead.
Thank you, good to know. I was about to suspect that questions, just like negations, take genitive. it's a bit hard to learn the governed cases just from examples, without any explanatory notes.
Is this also right: "Why do you use my toothbrush?"
Not as a translation. Why would be dlaczego or czemu.
"You are using my toothbrush?"
which seems to be the appropriate form of this particular question. :-)
I think "czy" makes it a genuine yes/no question; your way is more of a surprised exclamation.
OK, thanks. Got it.