虛擬語(yǔ)氣是一種動(dòng)詞形式，表示說(shuō)話人的一種愿望，假設(shè)，懷疑，猜測(cè)， 建議等含義，虛擬語(yǔ)氣所表示的含義不是客觀存在的事實(shí)。

If I were you, I’d take them away.

如果我是你的話，我就會(huì)帶走他們。

If I had met Li Hua, I could had told him.

如果我碰見(jiàn)了李華，我就告訴了他了。

If I had time. I could come to help you.

如果我有時(shí)間，我會(huì)來(lái)幫助你的。

He suggested that our class should be divided into five groups.

他建議說(shuō)我們的班應(yīng)該分成五個(gè)小組。

He speaks to us as if he had been there.

他給我們講的好象他去過(guò)那兒。

虛擬語(yǔ)氣的用法

1) 虛擬語(yǔ)氣用在簡(jiǎn)單句中，表示祝愿，命令。

May you be happy.

祝你幸福。

May you have a good time.

祝愿你玩的痛快。

May the friendship between us last long.

祝愿我們的友情天長(zhǎng)地久。

Have a good journey!

祝愿你旅途愉快!

You go out!

你出去!

2) 虛擬語(yǔ)氣用在賓語(yǔ)從句中。動(dòng)詞 wish, suggest,order,insist, propose,等詞后面的賓語(yǔ)從句表示的是一種虛擬語(yǔ)氣， 賓語(yǔ)從句中的動(dòng)詞動(dòng)作表示的只是一種愿望，要求。

I wish she would be on my side.

我希望她能站在我一邊。

I wish I could help him.

我希望我能幫助他。

He insisted that all of us should be there on time by any means.

他堅(jiān)持要我們大家想盡辦法按時(shí)去那兒。

動(dòng)詞 demand, suggest, order, insist, propose 后面的從句中，"should" 可以省略。

The teacher suggested that we (should) clean the blackboard after class.

老師建議我們課后把黑板擦了。

He ordered that the students wash the clothes every week by themselves.

他要求學(xué)生每周都要自己洗衣服。