"Už jsi umyl to nádobí?"

Translation: Did you do those dishes yet?

[judygunson]

Why is "Have you already done the dishes" wrong?

[VladaFu]

We require "those dishes", see my other comment.

[Annatamoracz]

I am sorry, but the comment you are referring to seems to have been deleted. Could you explain why "the" is considered wrong here? Thank you.

[AgnusOinas]

"Did you do the dishes?" would be "Umyl jsi nádobí?". English requires the definite article here, it doesn't work without it, and in such cases, there is no article in Czech. Using "to nádobí" means more specifically pointing/referring to it, hence "those" in English.

[Paul378887]

Why is it not “...ty nádobí”?

[AgnusOinas]

It's a collective noun and it's singular neuter.

[SherriDavi2]

"Did you wash the dishes yet? Why is this wrong?