1. 人称代词主格有 ( I we you he she it they ） 其在句子中充当主语.
2. 人称代词宾格有（ me us you him her it them ) 其在句子中放在动词或介绍之后.
3. 形容词性物主代词有 ( my our your his her its their ) 其后跟名词.
4. 名词性物主代词有： （ mine ours yours his hers theirs ） 在句子中相当于前文提及的形容性物主代词加名词.名词性物主代词有两种用法：第一种与人称代词主格相同,在句子中充当主语；第二种放在句子结尾.