'I hear sb to do' 是一个英语短语，意思是“我听到某人要做某事”。这个短语常用于谈论别人的计划或打算。例如：

- I hear John is going to quit his job and travel around the world.

- I heard Sarah is planning to start her own business.

这个短语也可以用于传闻和流言。例如：

- I heard that the company is going bankrupt.

- Have you heard that Jane is dating the boss?

当我们听到别人要做某事时，可以使用这个短语来传达这个信息，并询问他们的计划和打算。