for sb to do sth用作表語

for sb to do sth在句子中可有作表語。如：

It is for you to decide. 該由你來決定。

His idea is for us to travel in separate cars. 他的意思是我們不要同乘一輛汽車。

Our aim is for students to learn as quickly as possible. 我們的目的是讓學生盡快學到東西。

All I want is for us to be together. 我希望的只是我們能在一起。

The simplest thing is for him to resign. 最簡單的辦法是他辭職。