精选优质文档-倾情为你奉上非谓语动词一、动词不定式1、动词不定时的构成不定时的基本形式为：to+动词原形，有时可以不用to，这里的to 是不定式符号，本身无词义，动词不定式的否定形式是not+（to+）动词原形。 Although Jeff loves KFC, he tries _ it too often. A. to eat B. not eat C. to not eat D. not to eat2、动词不定式的句法功能1）动词不定式作主语 动词不定式作主语时，句子的谓语动词常用单数，其位置有以下两种：把不定式置于句首。To get there by bike will take us half an hour.骑自行车到那儿将花费我们半个小时。To save money now seems impossible.现在好像不可能省钱。用it作形式主语，把真正的主语不定式置于句后.Its our duty to take good care of the old.It takes
