I feel as though my Russian is regressing...
Can someone help me sort out the "negative" words in Russian grammar? There's нет, не, и ни. I think не is used only to negate verbs -- and verbs are only negated by не. E.G. Он не прочитал книгу. And I always thought нет was the equivalent for nouns -- У нас нет собаки. But then how does ни figure into all of this?