英语怎么变疑问句,否定句,肯定回答. 如: they like hambrger. she likes milk. l have a sister.

否定句：No I can't
疑问句：Can you going to the park?

有实意动词的句子，将do或does提前，实意动词变原型，剩下按陈述句语序抄下就行了。

Do they like hamburger?No,they don't.否定回答They don't like hamburger.否定句Does she like milk?No,she doesn'tShe doesn't like milk.Do you have a sister?No,I don't.I don't have a sister.

第一句：
疑问句：DO they like hambrger?
否定句：They don't like hambrger.
肯定回答：Yes,they like hambrger.或者Yes,they like it.
第二句：
疑问句：Does she likes milk?
否定句：She doesn't like milk.
肯定回答：Yes,she likes milk.或者Yes,she like it.
第三句：
疑问句：DO I have a sister?否定句：I don't have a sister.
肯定回答：Yes,I have.或者Yes,I have a sister.
将原句改成疑问句的时候 一：观察原句，如They like hambrger.原句中没有谓语动词is/am/are，所以就用助动词do/does。 用助动词的时候注意第三人称单数。
二：和中文一样“我喜欢”——“I like”，“我不喜欢”——“I don't like”.注意第三人称单数。
三：肯定回答。先用Yes/no等词，表态。。同意还是反对。然后在加上不被肯定的内容就可以了。
加油吧！！！