The Subjunctive Mood
By Liu Na
I. If 的虚拟条件句
1.
2. 错综虚拟句：
3. if 的省略倒装虚拟句：Were/ Had /Should
4. If there were not for …… → Were it not for ……
If there had not been for …… → Had it not been for ……
II. 半真半假：（真：时态、语态；假：虚拟）
but for, without,
现/将： would/could/should/might+V.(原形)
otherwise( unless otherwise
stated, …… ), or ,but: would/could/ should /might have done
现/将：were / did
III. would rather + clause
过去：had done
注：would rather do sth.
IV. I wish were / did
as if had done
if only would/could/should/might+V.(原形)
注：only if
1.建议、要求、请求、命令
V. should + V.(原形) 2. It is important/necessary/natural/essential/strange/a shame/a pity/a decision …that
3. It is (high/about) time (that)+ clause (did/should V.(原形)
VI. Model verb+ have done: 1. 对过去的猜测 2. 虚拟：本……
