肯定形式:“主语+及物动词+宾语”或“主语+不及物动词”
She has a little brother.
否定形式:“主语+don't/doesn't+及物动词+宾语”或“主语+don't/doesn't+不及物动词”
She doesn't have a little brother.
I don't eat every morning.
一般疑问句形式:“Do/Does+主语+及物动词原形+宾语”或“Do/Does+主语+不及物动词原形”。
肯定回答:Yes,主语+do/does. 否定回答是:No, 主语+ don't/doesn't.
Do you eat every morning?
—Yes, I do./No, I don't.
Does she have a little brother?
—Yes, she does./No, she doesn't.
特殊疑问句:特殊疑问词+do/does开头的一般疑问句?
What do you like?
When do you go to school?