why not的英语语法?是不是有wht not do sth = why don't you do sth 那祈使句not to do sth 成立不成立?既有not do sth 又有not do sth 祈使句只有用Dong't开头?我记得以前老师有说Not to....是祈使句...

why not的英语语法?是不是有wht not do sth = why don't you do sth 那祈使句not to do sth 成立不成立?既有not do sth 又有not do sth 祈使句只有用Dong't开头?我记得以前老师有说Not to....是祈使句... wht not 和why don't有区别吗?why____ we start at once 是不是两个都可以填？ 有关why not的用法why not是否等于why don't we?why don't we是不是不常用？ why 否定的用法 why not 是不是等于why don't? What is impontemt?I feel the life is not colors.Wht?Wht? why not 的同义词? why not 的用法! why not的意思 0.5LT GRN/WHT的含义 wht?I am sorry!I am not good at chian! why don't是不是等于why you not? Do you want to take part in a party?Why or why not?求国外比较地道的回答.如果可以5～6条答案最好有加分.麻烦大家了谢谢主要是why or why not?主要是why or why not?主要是why or why not?主要是why or why not?主要是 求英语大神,问一个英语语法问题~not so much.as与not so much.but 有什么区别?是不是都翻译成与其说是.不如是.的意思?可以分别举几个例子么? why do not和why not有什么不同? 用what about doing .wht not do...used to do .help sb do enjoy doing编一个初一水平的故事 why not,why didn't,why couldn't的区别 why not 的同意短语 why not的同意词