both用该放在什么位置才正确?

both的位置：

(1) 在be的后面

(2) 在实意动词前面 (往往用they both ,you both, wei both)

(3) 在情态动词，助动词后面

请看下面的例句：

①They are both very healthy. 他们俩都很健康。

②We are both interested in English.他俩都对应于感兴趣。

①We both have too much work to do. 我们俩有太多的工作要做。

②You both had a good time last might,didn’t you? 你们俩昨晚玩得很愉快，是吗?

③They both went to Beijing last week. 上周他们俩都去了北京。

①Don’t thank me. You must both thank him!

别谢我。你们俩必须感谢他! must=必须 情态动词

②We have both passed the exam. 我们俩都已经通过了考试。have=已经 助动词