An infinitive phrase consists of an infinitive(to plus a verb)plus one or more modifiers，a subject，an object(direct or indirect)，or a combination of these．Infinitive phrases always function as nouns，adjectives，or adverbs．

动词不定式（to加上动词）再加上动词的主语或宾语及其修饰语所构成的词组称为不定式结构，在句中往往类似于名词、形容词或副词，可充当主语、定语、状语或补足语等。

I wanted to see the contract．

I wanted Mr．Lee to see the contract．

To become an executive is the goal of many people in the business world．

Please list the name and address of each person to be notified in case of an emergency．

Mr．Li called this morning to cancel his appointment．