The possessive adjectives are: my your his her its our their whose
Possessive adjectives are used to indicate who (or what) owns something.
Possessive Adjectives are a type of pronoun. A pronoun is a word that replaces a noun. As possessive adjectives replace nouns, they are classified as pronouns. For this reason, they are also called possessive pronouns. The term possessive pronoun covers all the pronouns that demonstrate ownership.
Look at these examples:
This is Sarah's hat. This is her hat. (In this example, the possessive adjective her replaces Sarah. That's why it's classified as a pronoun as well as an adjective.)