什麼時候用助動詞do或者does樂樂課堂

一般現在時態句子的謂語動詞是實意動詞的情況下，疑問句、否定句、一般疑問句的肯定及否定回答，都要用到助動詞do或者does（主語是第三人稱單數時用does，其它的用do)。例如

Do you go to school at seven?

Yes，l do. / No，l don't.

He doesn't(does not的縮寫) have luhch at home.