For years I could not understand how to answer negative questions. "I sent it last week. Haven't you got it yet?" I would always reply: "No, I got it last week." (instead of "Yes, I got it last week.") "Yes, I haven't got it yet." (instead of "No, I haven't got it yet.") I'd like to know if anybody else has ever had this problem. When I was learning German at school, I would invariably say "Doch, I haven't got it yet" because I would substitute "doch" for the word "yes" in my own answers. I'd like to know if there are any languages that have a word used to mean "no" as an answer to a negative question.