1. I do my homework everyday.
do 是do one's homework 的结构词语
2. I do(1) not do(2) my homework everyday.
do(1): 助动词do
do(2)： do 是do one's homework 的结构词语
3. Do you do your homework everyday?
Yes, I do.
No, I don't.
4. He does(1) his homework everyday.
行为动词加es
He doesn't do(2) his homework everyday.
(1)和(2)是同一个词。
Does he do his homework everyday?
5. They do their homework everyday.
They don't do their homework everyday.
同一个词汇的不同含义，让我晕死了，所以，很多时候，本人选择了放弃
哎，以后不会了。
