It’s said to have been built in the Ming dynasty. 据说它是明朝修建的。
完成式
表示发生在谓语动作之前的动作
He seems to have caught a cold. 他似乎感冒了。 I hate to have quarreled with her. 我后悔和她吵架了。 I believe it to have been a mistake. 我相信这是一个错误。 You appear to have travelled quite a lot. 你似乎作过多次旅行。 I’m sorry to have given you so much trouble. 对不起给了你这么多麻烦。 It’s said to have been built in the Ming dynasty. 据说它是明朝修建的。 表示在某个给定的时间之前已完成的动作
I hope to have finished the work by now. 我希望现在以前已完成这项工作。 表示过去未曾实现的想法和愿望
I should like to have come earlier. 我本想早点来的。
We were to have been married last year. 我们本来打算去年结婚的。
完成进行式
形式
to have been + 现在分词
He seems to have been spying for both sides. 他似乎一直在为两方面搞秘密情报。 用法
只要用于助动词之后和appear，seem之后，但也可以用在happen，pretend以及believe，know，report，say，understand的被动式之后：
He appears to have been waiting a long time.相当于： It appears that he has been waiting a long time. 看来他已经等了很久了。
He pretended to have been studying. 相当于： He pretended that he had been studying. 他假装一直在学习的样子。
句型用法
在There be句型中的动词不定式：
For example one,There are too much homework to write. two,There are students writing too much homework.
\不定式
在英语中不定式最常用于质词\之后， 例如在 \walk\\cry\\eat\\fear\这种用法叫做to-infinitive。莎士比亚在著作哈姆雷特的独白时就大量采用了这类不定式动词。
To be or not to be ...
To sleep, perchance to dream ...
经常跟在to后形成不定式的动词包括: 例如:
I arranged to stay the night. (\我已安定好今晚留在这里。\
We intend to go skiing this weekend. (\我们打算这个周末去滑雪。\
I swear to honour you. (\我发誓为你增光。\
He sought to notify them of this new occurrence.
这些有宾词，然后加上有to的不定式的动词包括 (连同以上带有星号的动词): advise, allow, challenge, command, compel, condemn, enable, encourage, expect, forbid, force, help, induce, inspire, instruct, invite, oblige, order, permit, persuade, prefer, program, remind, teach, tell, train, urge, warn.
有些动词之后加 for + 宾词 + to-然后不定式. 通常这些动词包含渴望的意思，不能单单在后面加上宾词和不定式 (though an infinitive alone may work). 这些动词包括 apply, arrange, ask, call, clamour, long, opt, plead, press, vote, wait, wish, yearn.
例如:
I have arranged for the neighbour to water the plants. （“我已安排好邻居给植物给水。”）
I pleaded for him to accompany me to the theatre. （“我恳求他陪我去看戏。”）