当陈述语的谓语是非be动词,而是普通动词时,将句子转换为它的否定句即直接在动词前使用助动词do的否定形式don't(doesn't,didn't).否定句的要点是,有助动词优先否定助动词,没有助动词的加用don't,谓语是be动词的就不说了.特别说一下,有时助动词是have,如:
I have done it.
转换后:
I have not done it yet.
当陈述语的谓语是非be动词,而是普通动词时,将句子转换为它的否定句即直接在动词前使用助动词do的否定形式don't(doesn't,didn't).否定句的要点是,有助动词优先否定助动词,没有助动词的加用don't,谓语是be动词的就不说了.特别说一下,有时助动词是have,如:
I have done it.
转换后:
I have not done it yet.