非謂語(yǔ)動(dòng)詞=不當(dāng)謂語(yǔ)的動(dòng)詞

不定式是最常見(jiàn)的非謂語(yǔ)動(dòng)詞

1、不定式作名詞

表達(dá)的是一件事

eg:To see you is the plan.=The plan is to see you.

I like to see you.

2、不定式作形容詞

eg: The person to meet is Judy.

The book to read is Harry Potter

3、不定時(shí)作副詞

把目的信息帶到了句子里、（主語(yǔ)的目的）

副詞是對(duì)整個(gè)句子的補(bǔ)充

eg:I go to school to learn English.

To see you, I fly across the ocean.