虛擬語氣1
首先，來看個小故事：期末考試到了，小明要小紅給他抄答案，小紅拒絕了，小明很不開心，對小紅說：
If I had written that answer, I would have past that exam.
如果我寫了那個答案，我就通過這次考試了。
If I had written that answer, I would be the top student.
如果我寫了那個答案，我現在就是尖子生了。
If I had written that answer, I would receive a camera by my father.
如果我寫了那個答案，我會收到爸爸的相機。
If I had written that answer, I would be going to the winter holiday. (貌似沒什麼邏輯關係>_<)
如果我寫了那個答案，我明天就去夏令營。
回到定義：虛擬語氣是相對陳述語氣和祈使語氣而言的，陳述語氣包括陳述句、疑問句、感嘆句，祈使句就命令句。虛擬語氣則是表示願望、建議、與事實或預期相反的假設。
對於需要應試的各位筒子們，只要知道虛擬語氣用於狀語從句和名詞性從句，並瞭解它的常見搭配即可，來看這一幅圖
：
時間 | 從句 | |
過去 | had done | would+ have done |
現在 | did/ were | would+ do/ be doing |
將來 | were were to do should do | would +do/ be doing |
