must,can(could),may(might)should would

I can/could carry both suitcases. 我可以搬動兩個箱子。

They can/could hardly have intended to do that. 他們幾乎不可能願意做那事

May I take a swim? Yes, you may. 我可以去游泳嗎?是的，你可以。

I asked her if I might leave. 我問她我可不可以離開。

It may rain this afternoon. 今天下午可能會下雨。

We must keep our word. 我們必須遵守諾言。

You must be very tired. 你一定很累了。

We shall arrive tomorrow. 我們明天到。

You shall leave now. 你現在該離開了。

He said he would come. 他說他要來。

Will you help me with this package? 您願意幫我搬一下這包裹嗎?

He would eat nothing. 他什麼也不願吃。