人称代词一般指 I you he she等等。一般作为主语，即一般最基本的
主谓宾句子的最前面。I am a pupil. He is a boy.
形容词性物主代词，指my your his her等，既然是形容词性，当然是用来修饰名词的，所以是放在名词前。如my bag, your comb, his shoes.
宾格是相对应的
主格的。(前为主格，后为宾格）如I me you you he him she her 主语位置用主格，宾语位置用宾格。名次性物主代词跟形容词性物主代词也是相对应的，如mine yours his hers。既然是名词性，那就是说他们不能修饰名词。如This is my bag.=This bag is mine. 主格 宾格 形容词性物主代词
名词性物主代词I me my mineyou you your yourshe him his hisshe her her hersit it its itswe us our oursthey them their theirs