'I haven't ever owed anything to anyone' means "Я никогда никому ничего не был должен". And there's only one negative word: не. It's the only negative word in Russian. Things like ничего, никто, никому etc. are not negative; they act as negative words, so to say. At the same time they never go without the не in a sentence. You may say how about cases like this: - Что ты здесь делаешь? - Ничего. - What are you doing here? - Nothing. There's no single не in the answer. There's actually is one, but it's omitted. The full sentence is 'Я ничего здесь не делаю'. A double negative occurs when two не are used: Я не мог не показать ему, как он выглядит в зеркале. I couldn't help showing him his reflection in the mirror. Maybe there are some other cases when a double negative occurs, but I can't remember them.
Does this sentence mean something sensible? (Am I correct saying that?) If yes, I'm curious to know what it is."I haven't never owed nothing to no one"
So it does in Russian.Remember kids in English, as in math two negative equal a positive.