I am a boy,am not I? am not是不是应该是are not

I am a boy,am not I? am not是不是应该是are not i am a man.not a boy 把 am,boy,i,not,a 连字成句 i am not a decadent boy,they are! I am not Chinese boy I am not a Chinese 为什么后者要加a那 I am not a man I am not a fool I am not a good I am not a princess i am not happy I am not twenty I am not beauty