i'm crazy about it 为什么加be动词"am"?

i'm crazy about it 为什么加be动词am? I'm crazy about dancing 翻译成汉文 I became crazy about chinese Taijiquan the moment i knew more about it.翻译成汉语 i became crazy about chinese 太极拳the moment i knew more about it .翻译下--- I am crazy about you i'm crazy it's driving me crazy.i'm dead I'm So Crazy Crazy For You Do you like to play basketball?___A.perhaps B.I am crazy about it C.I am pleased about it. Do you like to play basketball?___A.perhaps B.I am crazy about it C.I am pleased about it. I think I'm crazy I’m sure about it. you know,I feel I'm crazy about you I can't stop thinking about you these days.是什么意思 I'm gonna be crazy Think I'M Crazy 歌词 Because I'm Crazy 歌词 When I was crazy about radios.中文翻译 I am crazy about the rain