3. shall, should
You shall do as I say. He shall be punished.
Shall I answer the telephone for you? = Do you want me to answer...?
Shall I make the bed for you? 我需要幫你鋪床嗎?
Shall we dance? 我們一起跳舞吧!
①表義務和必然(obligation =ought to )
You should finish your work on time.(你應該準時完成工作)
They shouldn’t lie to you. (他們不該對你說謊)
It is surprising that Tim should lose the game.
If you should change your mind, please let us know.
" should have +p.p."表「過去應該做而未做」
You should have passed the exam, but you didn’t.
(3) will 的用法:
Will you have another cup of coffee ? 你想要再來一杯咖啡嗎?
The game will be finished by now.目前為止比賽應該已經結束了。
Would you excuse me?[比will 客氣〕
Sometimes the boys would play a trick on their teacher.
would that = I wish that 表所望、決心或意向
Would that I were young again.
Would that I knew the answer.
would (should) like to +V "願..." ; Would you like~?表請客之意
Would you like to have lunch with me ?
He would like to go biking with Helen.(他想要與Helen一起去騎腳踏車)