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：I
you
he
she
it
we
you
they
宾格：me
you
him
her
it
us
you
them
形容词性物主代词：
my
your
his
her
its
our
your
their
名词性物主代词：
mine
yours
his
hers
its
ours
yours
theirs
人称代词的主格一般作主语，是动作的发出者。宾格是动作的承受者，作宾语。动词或介词的后面用宾格。
如：
She
often
helps
me.
He
sent
some
flowers
to
her.
形容词性物主代词相当于是形容词，后面要跟名词；句词性的物主代词相当于名词，后面什么都不跟。
如：
---Whose
is
this
book?
回答1：
---It's
my
book.
回答2：
---It's
mine.
两种回答意思一样。

Answer 2

主格做主语，放在陈述句句首
i
am
he
has...
宾格作宾语，放在动词或者介词后面
help
me
look
after
them
形容词性物主代词，必须加名词，例如
my
name
his
book
名词性无助代词=形容词性物主代词+名词
例如
it's
mine
theirs
are
new
不需要再加名词了。