反射不定式

反射不定式是指不定式與句子的主語構成動賓關係，此時的不定式主動形式表示被動意義，例:1．n. + be + adj. + to do.

(反射不定式，不定式與句子主語是邏輯上的動賓關係）

e.g. The man is hard to deal with.

The water is not fit to drink

2．n.+ be + too + adj.+ to do.

(反射不定式，不定式與句子主語是邏輯上的動賓關係）

e.g. The box is too heavy to carry.

Many stars are too small to see.

3．n. + be + enough + to do.

(反射不定式，不定式與句子主語是邏輯上的動賓關係）

e.g. The bag is light enough to carry.

This kind of work is easy enough to do.

此稱之為反射不定式。