关于some参考书上说both of+限定词+名词复数 中的of可加可不加如 both of his books=bot

关于some参考书上说both of+限定词+名词复数 中的of可加可不加如 both of his books=bot both +名词复数=both of +名词复数吗? 详解neither,both,all,most,each,either,none?如：both of+限定词+复数+v复 both of 后面可以加名词复数,那both of the后面呢,只能加单数吗? both of them,both of the two books这些短句中的of是否都可省略? some of和 one of 后加名词复数吗 both的用法是说both these books both of these books说一下BOTH的用法 both 后面是加名单还是名复?both of neither of either of each of both of后面名词谓语单复数 当both作为代词时 什么时候用both of +复数名词 什么时候用代词宾格 neither(both) of them后加单数还是复数?为什么呢? 类似some of的有哪些?如one of、each of、both of等