代词

　　人称代词主格做主语用一般放在句首或动词前，主格分别是 I you he she it we you they。

　　宾格做宾语用，一般放在动词或介词后

　　如：Open them for me. Let us , join me等。

　　宾格分别是me you him her it us you them。

　　形容词性物主代词放在名词前，不能单独使用，分别是my your his her its our your their

　　名词性物主代词相当于形物加名词，它只能单独使用后面不好加名词，分别是mine yours his hers its ours yours theirs。