英语虚拟语气中sb should /would do(have done) 与主语人称的搭配有什么讲究吗

应该说与主语人称的搭配没什么讲究,倒是在语义上有差别:would do / have done 仅表示“就会/ （过去）就会。should do / have done 表示 “应该会/ （过去）应该会。也就是说,should 暗含按道理或按事情发生的可能性应该怎么样的意思,而would却没有这样的意思。would可能含有乐意的意思。比较：If I were you,I would do it。如果我是你,我就会做这件事。If I were you,I should go there。如果我是你,我应该会去那儿。If he had had the momen,I would have taken it。如果我有钱,我就会买下它了。If he had started earlier,he should have completed it。如果他开始得早一些,他应该完成了。由于should 暗含按道理或常理应该怎么样的意思,所以有时用来批评人,如：You should have handed it in yesterday!你应该昨天就交了它的!(可事实上你没交。这显然是在责怪对方)。希望我已经讲清楚了。