否定式的常見縮寫形式

系動(dòng)詞be、助動(dòng)詞、情態(tài)動(dòng)詞的否定形式一般可以縮寫成爲(wèi)一種簡(jiǎn)略的形式。如：

is not—isn't     are not—aren't

was not—wasn't     were not—weren't

has not—hasn't     have not—haven't

will not—won't     would not—wouldn't

shall not—shan't     should not—shouldn't

do not—don't     did not—didn't

ought not—oughtn't     dare not—daren't

used not to—usedn't / didn't use to