both 可用于否定句吗？neither、either 和 both 在下面句子等同吗？

which one did you chose？ plan a or plan b？（正确）

Neither of them was accepted.（正确）

解析：Neither of them作主语，谓语用单数

Neither of them is currently in paid employment.  

他们俩目前都没有挣钱的差事。

Both of them was not accepted.(错误)

解析：Both of them作主语，谓语用复数

Both of them are the top students in their class.  

他们俩都是班上最好的学生.

Either of them was not accepted.(错误）

解析：Either of them作主语，谓语用复数

Either of them are to drive a man to distraction.  

他们之中的任何一个都足以驱使一个人变得疯狂.

i do not like both of the men.(正确)

i do not like either of the men.（正确）

i like neither of the men（正确）

备注：not+(both,all,everyone)+谓语=both/all/everyone+not+谓语，属于部分否定。