要求某人做某事用英语可以说 "request someone to do something"。这个短语的来源可能是由于 "request" 这个动词表示 "要求" 或 "请求" 的意思，而 "someone" 和 "something" 分别指代特定的人和事物。

例句：

Could you request her to call me back when she has a moment?

(能否请求她有时间时给我回电话？)

The boss requested him to finish the report by tomorrow.

(老板要求他明天完成报告。)

She requested that I help her with the project.

(她要求我帮助她完成项目。)