Sitting in English class while the teacher went over (and over and over) the parts of speech was so frustrating for me. I never *got* it. Asked to point out a noun or a verb, i was fine. An adverb, i'd have to think. Anything else? Forget it, i was lost. I dunno why.

I guess English is confusing, but people talking about Russian grammar seems incredibly confusing to me, so i suppose it's all a matter of what you're used to.