形容词性物主代词(简称“形物”)是用来表示所属关系或归属关系的代词形式。它们在句子中作为形容词修饰名词，用来指示该名词所属的人或事物。形容词性物主代词可以指示单数或复数的所有者。§
小提示：不要被这些专业术语吓到，或者去反感这些术语，更多的应该是去品味，为什么叫这样的名字，你也可以使用“阿猫、李四、张狗剩”去代替这些术语，只是一个名字，并不重要。重要的是怎么用出来与区别开来。
| 所有格 | 例( possessive + noun ) |
|---|---|
| my 我的 | my keys |
| your 你的 | your book |
| his 他的 | his lunch |
| her 她的 | her favorite dress |
| its 它的 | its name. |
| our 我们的 | our friend |
| their 他们的 | their grandparents. |
形容词性物主代词的形式与名词的单复数和性别保持一致。此外，它们可以在句中作为形容词来修饰名词，起到描述归属关系的作用。
名词词性物主代词容易与形容词性物主代词混淆使用，区别方法也很简单：形物后面要加拥有的东西，名物 = 形物 + 名词 ⇒ This is my pen. 形物 = This pen is my pen. 重复表达 = This pen is mine. 名物（替换my pen）
练习 （不主动练习的人，这辈子也学不好英语）
- Her sister is his girlfriend. 她妹妹是他的女朋友。
- His wife is her good friend. 他太太是她的好朋友。
- His brother is her boss. 他哥哥是她的老板。
正确的物主代词
This is she boyfriend’s watch.This is she’s boyfriend’s watch.- This is her boyfriend’s watch. 这是她男朋友的手表。
Whose is this handbag? = Whose handbag is this?
- It’s Stella’s.
Whose is this car? = Whose car is this?
- It's Paul's.
Whose is this coat? = Whose coat is this?
- It's Sophie's.
Whose is this umbrella? = Whose umbrella is this?
- It's Steven's.
Whose is this pen? = Whose pen is this?
- It's my son's.
Whose is this dress? = Whose dress is this?
- It's my daughter's.