my+brother+is+younger+than+am+i是病句吗？

Question

如题所述

Answer 1

是呀。
am I不对
有三种说法：
原句是这样的：My brother is younger than I am young.（一般不这样写了）
省略young
My brother is younger than I am.
省略am young
My brother is younger than I.
口语比较常见：
My brother is younger than me.（把than看成介词）本回答被网友采纳

Answer 2

My brother is younger than me.
My brother is three years younger than I am.