四、不定式作定语

不定式作定语修饰名语或代词，它只能放在它所修饰的名词或代词后面，如：

He has nothing to say. / We are facing a lot of difficulties to overcome during the period of review.

动词不定式定语往往有一层动宾关系，即所修饰的名词是不定式的宾语

（如上述两例）。所以，如果不定式的动词是不及物动词，那么就要在动词后加上相庆的介词。如：

He has a lot of trifles to deal with. / I had got no place to live

in. / That girl has nothing to worry about. / That is the subject to concentrate on. / He has a strict teacher to listen to. / She has four children to look after. / She had a sick mother to live with.