"请某人做某事"用英语可以说"ask someone to do something"。

其中"ask"是英文单词"请求"的意思，"someone"表示"某人"，"to do"表示"做"，"something"表示"某事"。

举例来说，"请你帮我拿东西"可以用英文说成"Ask you to help me get something"，"请你写信给我"可以说成"Ask you to write a letter to me"。

这句话来自英语，是英语语法中一种常见的句型。在英语中，当我们想要某人做某事时，通常会用"ask someone to do something"这种句型来表达。

例句：

Could you please help me with this? 请你帮帮我，好吗？

Can you ask him to call me later? 你能让他稍后给我打个电话吗？

Would you mind asking her to pass me the salt? 你介意请她把盐递给我吗？

I asked my teacher to explain the concept again. 我请我的老师解释这个概念。