非谓语动词包括：不定式、动名词和分词(现在分词和过去分词)。
不定式、分词可以作宾语补足语。动名词不能作宾补。
例句：
1.The teachers ask us to learn Chinese well.
不定式短语to learn Chinese well作宾语补足语。
2.Mary wants her son to be a doctor.
不定式短语to be a doctor作宾语补足语。
3.I saw Tom swimming.
现在分词swimming作宾语补足语。
4.I heard him listening to classical music.
现在分词短语listening to classical music作宾语。
5.I found the door locked.
过去分词locked作宾语补足语。
