both，all位于情态动词，助动词之后？

Question

如题所述

Answer 1

both 为两者都，all 表示三者或者三者以上都。
we are both students. we are all students. both 和 all 放在be 动词之后，
we both can go there. we all can go there. both和 all 放在情态动词及助动词之前.