Russian Noun Cases — Field Guide

All six cases · tips & memory hooks · Arma / military examples

Nominative Who/What is doing it? Accusative Who/What is affected? Genitive Of whom/what? Absence? Dative To/for whom? Instrumental With/by means of what? Prepositional About/at/in what?
Common Endings — Singular
Case Masculine Feminine Neuter
Nominative — / -й / -ь -а / -я / -ь -о / -е
Accusative =Nom (inan) / =Gen (anim) -у / -ю =Nom
Genitive -а / -я -ы / -и -а / -я
Dative -у / -ю -е / -и -у / -ю
Instrumental -ом / -ем -ой / -ей / -ью -ом / -ем
Prepositional -е / -и -е / -и -е / -и
Common Endings — Plural
Case Masculine Feminine Neuter
Nominative -ы / -и -ы / -и -а / -я
Accusative =Gen Pl =Gen Pl =Gen Pl
Genitive -ов / -ев / -ей / — — / -ей — / -ей
Dative -ам / -ям -ам / -ям -ам / -ям
Instrumental -ами / -ями -ами / -ями -ами / -ями
Prepositional -ах / -ях -ах / -ях -ах / -ях
Nominative Именительный падеж Кто? Что? — Who? What?

Core Uses

  • Subject of the sentence — the one doing the action
  • Predicate noun after быть (to be) — "He is a soldier"
  • Dictionary form — what you look up

Memory Hook

This is the base form. No ending changes from the dictionary. If you can't remember a case, nominative is your fallback — it won't always be right but it won't confuse a native speaker completely.

Think of it as the noun standing up straight, announcing itself: "I am the subject."

Common Endings

GenderSingularPlural
Masculine— (consonant) / -й / -ь-ы / -и
Feminine-а / -я / -ь-ы / -и
Neuter-о / -е-а / -я

Arma Examples

Солдат бежит. The soldier is running. солдат = subject
Вертолёт летит на север. The helicopter is flying north. вертолёт = subject
Командир здесь. The commander is here. predicate position, no verb needed
Враг в деревне. The enemy is in the village. враг = subject
Accusative Винительный падеж Кого? Что? — Whom? What?

Core Uses

  • Direct object — receives the action of the verb
  • Direction / destination with в and на
  • Duration of time ("for three hours")

Memory Hook

Inanimate nouns: look identical to Nominative for masculine and neuter. Only feminine changes (-а → -у, -я → -ю).

Animate nouns (people, animals): masculine changes to match Genitive (-а / -я). Think "alive = care more about it = different ending."

Rule of thumb: if you can replace the noun with "him/her/it" in English, it's accusative.

Common Endings

GenderInanimate Sg.Animate Sg.Plural
Masculine= Nominative-а / -я (= Gen.)= Gen. Plural
Feminine-у / -ю-у / -ю= Gen. Plural
Neuter= Nominative= Nominative= Gen. Plural

Arma Examples

Я вижу врага. I see the enemy. враг (animate masc.) → врага in accusative
Возьми оружие. Take the weapon. оружие (inanimate neuter) = nominative form
Едем в базу. We're driving to base. в + accusative = destination/direction
Вызываю командира. I'm calling the commander. командир (animate masc.) → командира
Я вижу машину. I see the vehicle. машина (inanimate fem.) → машину
Иди на позицию. Move to the position. на + accusative = direction toward
Genitive Родительный падеж Кого? Чего? — Of whom? Of what?

Core Uses

  • Possession / "of" — "the commander's rifle" / "rifle of the commander"
  • Absence with нет — "there is no…"
  • After numbers 2–4 (singular gen.) and 5+ (plural gen.)
  • After quantity words: много, мало, несколько
  • After prepositions: у, из, от, без, до, после, для, около
  • Negation — making a verb negative often triggers genitive

Memory Hook

Genitive is the most common non-nominative case — learn it first and you'll unlock a huge amount of Russian.

The "of" trick: mentally insert "of" between two nouns. "Автомат of the soldier" → солдата in genitive.

Нет + genitive = absence. "У меня нет патронов" — I have no ammunition. The thing that doesn't exist goes genitive.

Common Endings

GenderSingularPlural
Masculine-а / -я-ов / -ев / -ей / —
Feminine-ы / -и— / -ей
Neuter-а / -я— / -ей

Arma Examples

У меня нет патронов. I have no ammunition. нет + genitive plural
Автомат солдата. The soldier's rifle. possession: солдат → солдата
Мы едем из города. We're driving out of the city. из + genitive = movement out of
Без связи опасно. Without comms it's dangerous. без + genitive = without
После боя отдыхаем. We rest after the battle. после + genitive = after
Два солдата, пять солдат. Two soldiers, five soldiers. 2-4 → genitive singular; 5+ → genitive plural
Dative Дательный падеж Кому? Чему? — To whom? For what?

Core Uses

  • Indirect object — the recipient of an action
  • With к (toward a person or place)
  • Experiencer constructions — "мне холодно" (I am cold)
  • Age — "мне двадцать лет" (I am twenty)
  • With по (along, according to, by)

Memory Hook

Dative is the "to/for" case. Any time you're giving, sending, saying, showing, or reporting something TO someone, that someone is dative.

Also remember: к + dative = moving toward a person. "Иду к командиру" — going to (toward) the commander. Contrast with в/на + accusative which are destinations (places).

Common Endings

GenderSingularPlural
Masculine-у / -ю-ам / -ям
Feminine-е / -и-ам / -ям
Neuter-у / -ю-ам / -ям

Arma Examples

Дай мне автомат. Give me the rifle. мне = me (dative of я)
Иди к командиру. Go to the commander. к + dative: toward a person
Доложи командиру. Report to the commander. indirect object of reporting
Мне нужна помощь. I need help. мне = dative "to me [it is needed]"
Отправь карту группе. Send the map to the group. группе = dative, recipient
Солдатам нужны припасы. The soldiers need supplies. солдатам = dative plural
Instrumental Творительный падеж Кем? Чем? — By whom? By what means?

Core Uses

  • The tool or means used to do something
  • Together with / accompanied by — with с
  • Profession or role after быть — "он был командиром"
  • After prepositions: над, под, перед, за, между
  • Mode of travel — "едем машиной" (traveling by car)

Memory Hook

Think "instrument" — what you're using. Стреляю автоматом — shooting with/by means of a rifle. The ending -ом / -ей / -ью is very recognizable once you see it a few times.

С + instrumental = together with. "С командиром" = with the commander. Don't confuse with из (out of, genitive) — с means companionship or joint action.

Common Endings

GenderSingularPlural
Masculine-ом / -ем-ами / -ями
Feminine-ой / -ей / -ью-ами / -ями
Neuter-ом / -ем-ами / -ями

Arma Examples

Стреляю пулемётом. I'm firing with the machine gun. пулемёт → пулемётом (instrument)
Едем с командиром. We're driving with the commander. с + instrumental = together with
Прикрываю группу за домом. I'm covering the group behind the house. за + instrumental = behind
Вертолёт над нами. The helicopter is above us. над + instrumental = above
Он был снайпером. He was a sniper. role/profession after быть → instrumental
Между позициями тихо. It's quiet between the positions. между + instrumental = between
Prepositional Предложный падеж О ком? О чём? Где? — About whom? Where?

Core Uses

  • Location with в and на — "in/at/on" (static position)
  • Talking about something with о/об
  • After при (during, in the presence of)
  • Always used with a preposition — never standalone

Memory Hook

The key contrast: в/на + accusative = motion toward. в/на + prepositional = static location.

"Едем в деревню" (we're going TO the village — accusative direction) vs "Мы в деревне" (we ARE in the village — prepositional location). Same preposition, totally different meaning based on case.

Endings are some of the most consistent in Russian: mostly -е for singular across all genders.

Common Endings

GenderSingularPlural
Masculine-е / -и-ах / -ях
Feminine-е / -и-ах / -ях
Neuter-е / -и-ах / -ях

Arma Examples

Мы в деревне. We're in the village. в + prepositional = static location
Враг на холме. The enemy is on the hill. на + prepositional = on/at (location)
Говорим о враге. We're talking about the enemy. о + prepositional = about
Снайпер на крыше. Sniper on the roof. на + prepositional: крыша → крыше
Техника в лесу. The vehicles are in the forest. в + prepositional: лес → лесу (irregular)
При атаке держи позицию. During the attack, hold position. при + prepositional = during/in the event of
Key Contrast: в/на + ACC vs. в/на + PREP

Motion → Accusative

  • Едем в деревню — going TO the village
  • Иди на позицию — go TO the position
  • Смотри на север — look TO the north

Location → Prepositional

  • Мы в деревне — we ARE in the village
  • Враг на позиции — enemy IS at the position
  • База на севере — base IS in the north