英语中的主格、宾格、形容词性物主代词、名词性物主代词分别怎么用？

Question

如题所述

Answer 1

主格用于作主语；宾格用于作宾语，通常放在动词，介词之后；形容词性物主代词用于名词之前，相当于形容词，作定语；名词性物主代词，相当于名词一样使用

Answer 2

主格作主语用：He is a student.
宾格作宾语用：I helped him.
形容词性物主代词作定语用，修饰后面的名词：His book is new.
名词性物主代词作主语、宾语、表语用，即：名物= 形物 + 名词
His book is new. Mine is old. (Mine= My book)
That book is hers. (hers=her book)
She is looking for hers. (hers=her book)

Answer 3

英语中的主格是I you he she it we you they，宾格是me you him her it us you them，形容词性物主代词是my your his her its our your their，名词性物主代词有mine yours his hers its ours yours theirs
主格做主语I am from China.
宾格在动词后面 Pass me acup of tea.
形容词性物主代词用在名词前My bag is red.
名词性物主代词后面不跟名词
Her dress is yellow，mine is green.