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.你似乎做过多次旅行'
I 'm sorry to have given you so much trouble.
It 's said to have been built in the Ming dynasty.
I hope to have finished the work by now.
I should like to have come earlier.我本想早点来的。
We were to have been married last year.