both ...and...的用法（关于both的用法）

both当形容词的时候，有both of the boys=both boys =both the boys（两个男孩都...）接代词的时候是both of us=we both（我们都...）当both做副词的时候，放在Be动词。

助动词，情态动词之后，行为动词之前比如说We both like English.We can both sing.另外。

both 也构成短语both...and...（两者都...）比如Both Tom and Tina like English.（Tom和Tina都喜欢英语）这里的“like”必须用复数形式both...and...的反义短语是neither...nor...我们刚上完，老师给我们讲的，楼主放心用吧楼主的问题里说我们都有黑头发是“We both have black hair.”=Both of us have black hair.我们都很外向是“We are both outgoing.”=Both of us are outgoing.。