"On Sundays I wear skirts."
Translation:Pazarları etek giyerim.
shahidmek, you should read all the comments; it is very helpfull because we all have the same questions and you're sure to find an answer to yours. In his comment above, Mizinamo gives a clear explanantion: "Turkish non-specific objects don't show plural. See also this post: https://www.duolingo.com/comment/7736911"