don't be和be not的区别,分别用在什么地方?祈使句的否定用don't be还是be not?

don't be和be not的区别,分别用在什么地方?祈使句的否定用don't be还是be not? don't be careful和be not careful的区别 not to be 和 don‘t be的用法 seem to be的否定形式是seem not to be还是don't seem to be don't be 与be not 有什么区别呢?be 有自己否定形式,为什么还要用don't 来修饰呢? don't be sad/not be sad区别? don't be afraid和not afraid区别 英语否定句中什么时候用“be+not''什么时候用don't/doesn't Be not afraid of和don't be afraid of区别 don't be 后面可以接被动语态done么 don't be 和are not有啥区别 there will be的否定形式是there won't be还是there will be not Please____ late again A.not be B.don't be