Possessive adjectives (мамин, папин)

Possessive Adjectives with -ин and -ын

In English, we usually add "'s" to show ownership (mom's, dad's). In Russian, you can express this by turning a person's title into a special possessive adjective. These are formed from nouns that end in or (usually family members or titles).

To form them, replace the or with the suffix -ин:

  • мама → мамин (mom's)
  • папа → папин (dad's)
  • бабушка → бабушкин (grandma's)
  • дядя → дядин (uncle's)

If the stem ends in , use the suffix -ын instead:

  • царица → царицын (empress's)

Mixed Declension

Like all adjectives, these possessives must agree in gender, number, and case with the noun they modify (the thing being owned, not the owner).

They use a "mixed declension." In the Nominative case (and usually the Accusative), they take short endings (мамин, мамина, мамино, мамину). In other cases, they take standard long adjective endings (like мамином, маминой, маминым).

Accusative and Instrumental Cases

When talking about antiques (старинный) or an inheritance (наследство), you will often use these adjectives in the Accusative and Instrumental cases.

Remember that in the Accusative case, feminine nouns take an ending. The possessive adjective will match it with its own short ending (e.g., мамину).

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