[frooxie]

English used to have a four-form system, where yes and no were the responses to a question posed in the negative, whereas yea and nay were the responses to positively framed questions.

I know German has "ja" and "doch" as ways of saying "yes" to positively vs negatively framed questions.

One thing I've found interesting is that in English you answer positively and negatively framed question in the same way, whereas in many East-Asian languages, you take the internal logic of the sentence into account, leading to confusing dialogues for English teachers working abroad in Asia: "Didn't you do your homework?" "Yes. Yes, I didn't do my homework".