【辨别句中“have/has/has”"do/does/did "是行为动词还是助

“have/has/has”"do/does/did 可以是行为动词也可以是助动词,要根据句子的内容与结构来定,如
have / has 作助动词：
I have been to Beijing.
He has been to Beijing.
作行为动词：
I have lunch at home.
He has lunch at home.
We had a meeting yesterday .
do/ does / did 作行为动词：
They do their homework every day .
He does his homework every day .
She did her homework last night .
作助动词：
What time do you usually go to school
What time does he usually have lunch
When did you go to Shanghai
加油!不明白再问!