请问didn't did don't not或者还有什么的,是怎么个用法

还有,如果是你不.应该用didn't don't doesn't?我好混乱阿,有没有第三人称复数,有的话应该怎么用did not,don't的用法 is not don't 用法 关于英文特殊问句?请问:You didn't reply me.这句话怎么变成特殊问句.是Why did you not didn't,dosen't,don't用法区别 did后面的动词要加过去式吗,那didn't呢还有don't呢,要加过去式吗 请问：Didn't you cook?和Did you not cook.意思有什么区别? didn't doesn't don't 怎么用 not 和don’t 的用法,说明 don't 和not 的用法 did not 跟didn't有什么区别? 请问don't,doesn't,aren't的用法?