Be quick!否定句请用Don't回答

Be quick!否定句请用Don't回答 Be quick 否定Be quick 的否定是Don't be quick为什么要加助动词,不能直接Beno't quick吗?be动词为什么也要加助动词呢,不是直接加not就可以了吗? If you don't be quick,you will be piease be quick 变成否定句 i don't like maths at first=i don't like ____ ____ ____.be quick Don't worry!Take the___and you will feel better.Be quick!The bus is driving___. Be quick! Don't keep your friend ____(wait) too long Be quick!We don't have e ___ time.怎么填? Plese be ____(slow).Don't go to so ____(quick). don't run so quick 改错 My mother said,“Don’t watch TV,Mike.”（改为间接引语） She has already finished her work（...My mother said,“Don’t watch TV,Mike.”（改为间接引语）She has already finished her work（改为否定句）Be quick,and you’ll You will be late if you _____（not be）quick?应该填 aren't 还是 don't be ,为什么? 谢谢~~ be angry with sb 否定的时候为什么不否定be动词,却在be 前加don't If you don't be quick,you'll be late的同义句,我已经知道了Be quick,or you will be late.那另一种哪?（我是认真的,我马上要考试.） Don't be late for class.(改为否定句)Please be ___ ___ for class. 英语否定句中什么时候用“be+not''什么时候用don't/doesn't能不能举例 Don't be so fussy!这种句型不符合语法规则啊……be动词的否定形式怎么会用don’t否定呢? don't的否定形式