to be do是什么時態

　　We will be having a meeting to decide what to do.

　　我們將開會決定該做什么。

　　How long he'll be able to do so is a moot point.

　　他還能這樣做多久是一個未知數。

　　We were rather hoping you'd be able to do it by Friday.

　　我們希望你最好能在星期五之前做這件事。