为什么不说do not afraid 要说 do not be afraid

为什么不说do not afraid 要说 do not be afraid Do not be afraid为什么不加to 提问的时候什么时候用do,什么时候用Be动词比如eg.Are you afraid of dogs? 为什么不说do you afraid of dogs? Do not be afraid to be weak. Do not be afraid about it.为什么加be?不加be行不行? 有些句子中为什么要加be像Do not be afraid.She is be happly.等等这些句子为什么要加be呢? don't be afraid和not afraid区别don't be afraid和not afraid 这两句有什么区别吗?再说afraid这不是副词吗 为什么前面可以用do呢?do不是用在动词的地方?而且do和be都是谓语 一句话不是不能有2个谓语吗 I'm do not afraid 和 I`m not afraid 那个用法是对的? DO NOT BE AFRAID TO FALD.BE AFRAID NOT TO TRY DO NOT BE AFRAID I WILL ALWAY LOVE YOU MY Do not be afraid,we have been here accompany you! 翻译Do not be afraid follow the dentist ‘s advice. Please d----- yourself in English.Do not be afraid. You do not be afraid （ ） catching a cold. I was nothing,so do not be afraid to lose. I.m afraid not为什么直接加not i am afraid i have to go now i'd rather you didn't go alone.it is already too late谁能告诉我为什么要用did not,为什么不是do,为什么用过去式呢 Do not be afraid to be weak,Do not too proud to be yong.