英语句子变否定句的方法和改一般疑问句的方法有哪些?

如题所述

否定句:* 有be动词的句子,直接在be动词的后面加not 如:
she is not a teacher.
they were not watching tv.
* 没有be动词的句子,要用到助动词来完成否定 如
she doesn't like english.
they didn't want to watch tv.

疑问句: 有be动词的句子,将be动词提前,其余照抄,用问号结尾 如:
is she a teacher?
were they watching tv?

没哟be动词的句子,要用到助动词来构成疑问语序, 如:
does she want to be a teacher?
did they watch tv last night?
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