第一類型虛擬語氣 B
　　見某些形容詞要虛擬
　　Urgent， necessary， important， possible， essential， incredible， natural， ridiculous， vital， imperative， crucial， critical， proper， compulsory， etc.
　　形容詞帶的從句 ： It is important that every member （should） inform himself of these rules.
　　主語從句 ： It is decided that the meeting （should） be postponed.
　　賓語從句 ： He insisted that his daughter （should） come.
　　表語從句 ： The doctor’s advice is that the patient （should） be kept quiet.
　　同位語從句 ： He gave order that the guests （should） be hospitably entertained.
　　考題 ： They demanded that the right to vote——（give） to every adult person. [（should） be given]
　　For a child to give up less mature idea for a more sophisticate one， it requires that the child ____ psychologically ready for the new idea.
　　A.is B.be C.were D.would be
　　第二類型 ： if 的非真實條件句（ 可能性小或沒有可能 ）
　　注意 ： if 可以引導真實條件句 ， 多是條件狀語從句 .
　　第二類型虛擬語氣（ 時態到推的概念 ）

	If + 從句	主句
與現在事實相反	If+ 主語 .+ were 　　　　　 + V.ed	主語 + should + V. 　 +would + V. 　 +could + V.
與過去事實相反	If+ 主語 .+ had+ done + been	主語 + should + have+ p.p. +would + have+p.p. 　 +could + have+ p.p. 　 + might+ have+ p.p.
與將來事實相反	If+ 主語 . 　　　　　　　　 + were to do/be 　　　　　　　　 +should do/be	主語 + should + V. +would + V. +could + V. +might+ V.

　　第二類型虛擬語氣舉例省略 if 的倒裝
　　were， had ， should.
　　If the doctor had been available， the child would have been saved.
　　Had the doctor been available， the child would have been saved.
　　考題 ：
　　_____for your help， I would not have overcome the psychological pressures and tensions.
　　A. Had it not been B. not been C. Without being D. not having been
　　特殊虛擬
　　Even if 形式上與 if 相同|考試大收集整理
　　Wish 形式上大體與 if 從句相同
　　從句謂語與 Wish 同時 Wish+ 主語 +V.ed/were
　　I wish I were as young as you.
　　從句謂語發生 Wish 之前 多用 Wish+ 主語 +had done（been）
　　I wish that he had not made so much trouble.