话题 drive sb to doing sth

话题 happen to have done sth

话题 fail to do sth everywhere

话题 There is known to be…

话题 be easy to do sth

话题 have yet to do sth

话题 be about to do sth

话题 be too difficult to do

话题 Bob is splendid to wait.

话题 involve sb to do sth

话题 seem not to do sth

话题 how it came to be

话题 intend sb to do sth

话题 demand sb to do sth

问题 名词+to be done 和名词+done 用法含义辨析

...过去分词，已经完成的， 这不矛盾了吗？是否应该加上to be constructed，这样就肯定没有歧义了？也就是说，n + to be done, 当不定式的被动式作名词的后置修饰语时，to be可以省略吗？ 或省略有什么条件制约？