"我的"和"你的"是物主代词。

"Mine" and "yours" are ___possessive pronouns.

"John's"是"John"的所有格形式。

"John's" is the ___possessive form of "John".

在短语"my book"中，"my"这个词表示所有关系。

In the phrase "my book", the word "my" is ___possessive.