(10)It is strange that she should have done it. 真奇怪,她竟会干出这种事来。
6) 动词原形。如:
(11)If I were you, I should take his advice. 我如是你,就会听他的忠告。(美国英语常用would代替should)
(12)He said he would go if I went. 他说我去他就去。
7)时态助动词should(第一人称)和would(第二、三人称)+ have+过去分词。如:
(13)If father hadnt sent me, I shouldnt have come. 如不是父亲派我来,我是不会来的。(美国英语常用would代替should)
You wouldnt have seen her if it hadnt been for him. 如果不是他,你就不会见到她。
[注]虚拟时态有不少与直陈语气的某些时态形式相同,但二者的内涵及其所表的时间皆不一样,切不可混淆。
4) 条件句的种类
条件句有真实条件与非真实条件句两种。真实条件句所表的假设是可能发生或实现的,句中的条件从句与结果主句皆用直陈语气。如:
(1)Oil floats if you pour it on water. 你如把油倒在水里,油就浮起来。
(2)If I have enough money next year, I will go to Japan. 假若明年我有钱,我就去日本。
非真实条件句所表的假设是不可能或不大可能发生或实现的,句中的条件从句与结果主句皆用虚拟语气。现将用于非真实条件句的虚拟时态列表如下:
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