Core Grammar / Grammar

Местоиме́ния

Russian pronouns, personal and possessive, across all six cases. Every form is playable. The two things that actually trip people up are here too: the н- prefix after a preposition, and the fact that a possessive agrees with the thing owned rather than the owner.

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Why pronouns change form

Russian is a case language: the ending of a word signals its grammatical role in the sentence, and pronouns are no exception. English does this too, in a smaller way. "I / me / my / mine" and "he / him / his" are case forms of one word. Russian simply extends that logic across six cases for every pronoun.

The case a pronoun takes depends on its job: subject of the verb (nominative), direct object (accusative), possession or absence (genitive), indirect object or recipient (dative), instrument or companion (instrumental), or topic after a preposition (prepositional). The meaning stays the same. Only the form changes.

Я ви́жу его́I see him. Accusative, he is the direct object.
Я дал ей кни́гуI gave her a book. Dative, she is the recipient.
Он говори́т обо мнеHe is talking about me. Prepositional, after обо.

Personal pronouns, declension

The form changes by case, not by gender. Rows run in the site's standard order: nominative, accusative, genitive, dative, instrumental, prepositional.

Case яI тыyou онhe она́she мыwe выyou (pl) они́they
Nominativewho? (subject) я ты он она́ мы вы они́
Accusativewhom? what? (direct object) меня́ тебя́ его́него́ after prep еёнеё after prep нас вас ихних after prep
Genitiveof whom? without whom? меня́ тебя́ его́него́ after prep еёнеё after prep нас вас ихних after prep
Dativeto whom? for whom? мне тебе́ ему́нему́ after prep ейней after prep нам вам имним after prep
Instrumentalby whom? with whom? мноймно́ю (literary) тобо́йтобо́ю (literary) имним after prep ейе́ю, and ней / не́ю after prep на́ми ва́ми и́мини́ми after prep
Prepositionalabout whom? (always after a prep) мне тебе́ нём ней нас вас них
н- prefix. The third-person pronouns (он, она́, они́) add н- when a preposition comes directly before them: у него́, к ней, с ни́ми. The prepositional case always follows a preposition, so the н- forms are the only ones that appear in that row. Nominative forms are dimmed above because that is the base dictionary form, not a case you apply to something.
У него́ есть маши́наHe has a car. Genitive after у, so его́ becomes него́.
Мы идём к нейWe are going to her. Dative after к, so ей becomes ней.
Я говорю́ с ни́миI am speaking with them. Instrumental after с, so и́ми becomes ни́ми.

Possessive pronouns

A possessive agrees with the noun it describes, not with the owner. The four columns below are the nominative forms for each gender and for the plural.

Pronoun Masculine Feminine Neuter Plural
мойmy / mine · (я) мой моя́ моё мои́
твойyour / yours · (ты) твой твоя́ твоё твои́
его́his / its · (он / оно́) его́ его́ его́ его́
еёher / hers · (она́) её её её её
нашour / ours · (мы) наш на́ша на́ше на́ши
вашyour / yours · (вы) ваш ва́ша ва́ше ва́ши
ихtheir / theirs · (они́) их их их их
Invariable, third person. его́, её and их never change, whatever the noun's gender, number or case. That is why their four cells above are identical and dimmed, and why only one carries a play button. Declining, first and second person. мой, твой, наш and ваш each have the four gender and number forms shown, and then also decline by case like adjectives: с мои́м дру́гом, у на́шей маши́ны.

The agreement rule

The form of a possessive reflects the noun being described, not the owner. So "my" takes a different form depending on what is mine, one per gender and number in the nominative alone.

мой братmy brother. Masculine.
моя́ сестра́my sister. Feminine.
моё письмо́my letter. Neuter.
мои́ друзья́my friends. Plural.

Those four forms then change by case as well, exactly like an adjective:

у мое́й сестры́at my sister's. Genitive after у.
с мои́м дру́гомwith my friend. Instrumental after с.
о на́ших пла́нахabout our plans. Prepositional after о.

Third-person possessives skip all of it. его́, её and их are invariable in every context, which makes them the three easiest words on this page.

Key
Nominative
Accusative
Genitive
Dative
Instrumental
Prepositional
н- marks the preposition-triggered prefix on a third-person pronoun. Dimmed cells are invariable: его́, её and их never change.