含 be/助动词/情态动词的句子，变成一般疑问句，将be动词，情态动词或者助动词提前，句首首字母改成大写，句中形式改变，如人称变化，不是三单等。句末标点由句号改成页面。举例：
He is my brother?改Is he your brother?
He likes apples.改 Does he like apples?
She can swim. 改Can she swim?
总之就是一句话，一提二变三标点。
变成否定句很好变，在情态动词，和be动词后边加not，助动词需要有人称变化，some 记得换any，举例：
He has some pens.改为 He does not have any pens.
He can cycle. 改为He can not cycle.
He is a student.改为He is a student.
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第1个回答 2020-11-11
改一般疑问句和否定句的方法
句子中有be动词情态，动词和助动词时变一般疑问句，把这些词提到句子的开头，变否定句直接在他们的后面加not
否则要借助助动词do does或did
如
He is a student.
Is he a student？
He isn't a student.
He works hard.
Does he work hard？
He doesn't work hard.
句子中有be动词情态，动词和助动词时变一般疑问句，把这些词提到句子的开头，变否定句直接在他们的后面加not
否则要借助助动词do does或did
如
He is a student.
Is he a student？
He isn't a student.
He works hard.
Does he work hard？
He doesn't work hard.
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