my mother usually on the subway to go to work 这个句子对吗?如果错了,为什么?

问题描述:

my mother usually on the subway to go to work 这个句子对吗?如果错了,为什么?

My mother usually goes to work on the subway

应该是My mother usually go to work on the subway/by subway.

不对,这句话没有谓语,应该是
my mother usually goes to work on the subway.