以下常見的be虛擬固定用法：
God bless you.上天保佑你Be that it may...不管是真是假e what may...不管發生什麼Heaven help us！上天保佑Heaven forbid！天理難容If need be...如果需要的話...，so be it.就這樣 Until death do us part直到死亡把我們分離Truth be told說句實話Peabsp;be with you願你安寧Suffibsp;it to say...足以說明were型虛擬語氣were型虛擬語氣主要用於表示與事實相反的願望、假設、印象、看法等意義的結構中，如wish等動詞後的名詞性從句，If only，as if，would ratherbrsoo is time 等短語後的分句等。如與現在情況相反，虛擬語氣用動詞的過去時（be動詞用were），如與過去情況相反，則用過去完成體形式。
無論主語是單數還是複數，謂語動詞始終采用were形式。
如： “Your plan is a good one，” replied Elizabeth，“where nothing is in question but the desire of being well married； and if I were determined to get a ribsp;husband，or any husband，I dare say I should adopt it...”（Pride and Prejudice）
“But I am afraid you are giving it a turn whibsp;that gentleman did by no means intend； for he would certainly think the better of me，if under subsp;a circumstanbsp;I were to give a flat denial，and ride off as fast as I could.”（Pride and Prejudice）
“That would be a good scheme，” said Elizabeth，“if you were sure that they would not offer to nd her home.”（Pride and Prejudice）
“Well，” said Charlotte，“I wish Jane success with all my heart； and if she were married to him tomorrow，I should think she had as good a bsp;of happiness as if she were to be studying his character for a twelvemonth.”（Pride and Prejudice）
“I should like balls infinitely better，” she replied，“if they were carried on in a different manner； but there is something insufferably tedious in the usual process of subsp;a meeting.”（Pride and Prejudice）
1.were型虛擬用於狀語從句
（1）if條件句： “Another time，Lizzy，” said her mother，“I would not danbsp;with him，if I were you.”（Pride and Prejudice）“If I were as ribsp;as Mr.Darcy，” cried a young Lubsp;who came with his sisters，“I should not care how proud I was.I would keep a pabsp;of foxhounds，and drink a bottle of wine every day.”（Pride and Prejudice）“Then you would drink a great deal more than you ought，” said Mrs.Be； “and if I were to e you at it，I should take away your bottle directly.”（Pride and Prejudice）
（2）if only從句：If only he were a wizard，then he’d know whether it was just a stray bsp;or something el.（Harry Potter and the Prisoner of Azkaban）