Most Serbian masculine nouns end in a consonant and decline through seven cases in two numbers. The system looks larger than it is: dative and locative singular share a form, dative/instrumental/locative plural share another, and nominative/vocative plural normally coincide. The decisive extra contrast is animacy in the singular accusative.
This page gives the full core paradigm through two nouns: inanimate град “city” and animate студент “student.” It then shows how stem shape, extended plurals, and common irregular nouns modify that pattern. Unless labeled otherwise, all forms are neutral contemporary standard Serbian.
Two complete model paradigms
| Case | град singular | град plural | студент singular | студент plural |
|---|---|---|---|---|
| Nominative | град | градови | студент | студенти |
| Genitive | града | градова | студента | студената |
| Dative | граду | градовима | студенту | студентима |
| Accusative | град | градове | студента | студенте |
| Vocative | граде | градови | студенте | студенти |
| Instrumental | градом | градовима | студентом | студентима |
| Locative | граду | градовима | студенту | студентима |
Do not read this as fourteen independent endings. For град, the plural extension -ов- stays present throughout: градови, градова, градовима, градове. For студент, the stem is normally студент-, with an inserted а in genitive plural студената. Pattern recognition gives you a much smaller workload than memorizing every cell separately.
The table also shows three dependable structural economies. Dative and locative singular both end in -у. All three plural oblique cases—dative, instrumental, and locative—end in -има. Nominative and vocative plural coincide. If you learn the singular accusative choice and the genitive plural separately, most remaining cells fall into these repeated sets.
Singular cases in use
The nominative is the subject and dictionary form. Genitive commonly appears after без, из, од and in possessive or partitive relations. Dative marks a recipient or goal. Accusative marks the direct object and appears after directional prepositions. Instrumental marks accompaniment or means. Locative occurs only with prepositions. Vocative directly addresses someone.
Студент је послао професору поруку после часа.
The student sent the professor a message after class.
Here студент is nominative and професору is dative. Position alone does not determine either role.
Без телефона не могу да потврдим резервацију.
Without my phone, I can't confirm the reservation.
У суботу идемо у град, а у недељу остајемо у граду.
On Saturday we're going into town, and on Sunday we're staying in town.
The directional phrase у град takes accusative; the location у граду takes locative. English uses the same noun form and signals the contrast mainly through context. Serbian encodes it in the ending.
Путујем с колегом, али се враћам возом.
I'm traveling with a colleague, but I'm returning by train.
Both phrases use instrumental: с колегом expresses company, while bare возом expresses means. The noun колега is masculine but follows the -а declension; its agreement remains masculine.
The vocative is not simply decorative. It marks the person addressed and stands outside the clause's ordinary subject-object relations. With common hard stems it often has -е, as in докторе; with soft stems it often has -у, as in пријатељу. Personal names and kinship words have additional lexical patterns, so the citation form alone is not always enough to predict direct address.
Докторе, да ли су резултати већ стигли?
Doctor, have the results arrived yet?
The singular accusative: animacy
For the main masculine pattern, an animate accusative matches the genitive, while an inanimate accusative matches the nominative:
Срео сам старог пријатеља и купио нов ранац.
I met an old friend and bought a new backpack.
Пријатељ is animate, so the object is старог пријатеља. Ранац is inanimate, so the object noun remains ранац and its modifier has the inanimate accusative form нов. This distinction is singular only; plural objects use пријатеље and ранчеве regardless of animacy.
See animacy in masculine nouns for the semantic boundary and special declension classes.
Hard and soft stem endings
After the palatal and postalveolar consonants ј, љ, њ, ч, џ, ћ, ђ, ш, and ж, instrumental singular typically has -ем rather than -ом, and vocative typically has -у rather than -е:
| Nominative | Genitive | Vocative | Instrumental |
|---|---|---|---|
| пријатељ | пријатеља | пријатељу | пријатељем |
| краљ | краља | краљу | краљем |
| возач | возача | возачу | возачем |
| доктор | доктора | докторе | доктором |
Пријатељу, можеш ли да ми помогнеш око селидбе?
My friend, can you help me with the move?
До аеродрома смо се возили с искусним возачем.
We rode to the airport with an experienced driver.
The rule is highly useful but not exceptionless. Vowel patterning and lexical history produce forms such as музејом and Бечом. Dictionary confirmation is appropriate for an unfamiliar noun; pretending that one phonological formula predicts every word would be misleading.
Building the plural
Many polysyllabic masculine nouns add plural endings directly: студент — студенти, професор — професори, телефон — телефони. Many monosyllables and some shorter nouns add the extension -ов- or -ев-: град — градови, сто — столови, краљ — краљеви, муж — мужеви.
Студенти су оставили телефоне у ормарићима.
The students left their phones in the lockers.
Нови мостови повезују делове града који брзо расту.
The new bridges connect parts of the city that are growing quickly.
The choice between a short plural and an extended plural is partly lexical. It is explained in depth on masculine -ов-/-ев- plurals. Once the plural stem is known, the rest is regular: nominative/vocative -и, genitive -а, accusative -е, and dative/instrumental/locative -има.
Genitive plural and fleeting а
Genitive plural can reveal changes hidden in the singular. Студент gives студената; момак gives момака; отац gives отаца. The inserted or restored vowel is traditionally called fleeting а because it appears in some forms and disappears in others.
На предавању није било неколико студената са прве године.
Several first-year students were absent from the lecture.
This is a genuine lexical and phonological difficulty. Not every consonant cluster behaves identically, so learners should acquire the genitive plural of frequent nouns, especially when the stem changes. See fleeting а for the detailed patterns.
High-frequency irregular networks
A few common masculine nouns use a plural built from a different or heavily altered stem:
| Singular | Ordinary plural | Note |
|---|---|---|
| човек | људи | suppletive plural |
| брат | браћа | collective-type plural with its own declension |
| господин | господа | special collective-type plural |
| пас | пси | short plural with stem adjustment |
| отац | очеви | extended plural and consonant change |
У реду су стајали људи из неколико различитих градова.
People from several different cities were standing in line.
There is no productive rule that derives људи from човек. Learn such pairs as vocabulary, then learn the case forms from the plural stem: људи, људи, људима, људе.
Masculine nouns in -а
Masculine nouns such as колега, судија, газда, and names such as Никола do not use the consonant-stem endings. They decline like -а nouns: колега, колеге, колеги, колегу, колегом. Their modifiers and predicates are masculine in the singular.
Наш нови колега води сутрашњи састанак.
Our new colleague is leading tomorrow's meeting.
Разговарали смо с нашим новим колегом.
We spoke with our new colleague.
Gender and declension are therefore related but not identical: gender controls agreement, while stem class controls the noun's case endings.
Common Mistakes
1. Ignoring animacy in the singular accusative.
❌ Позвали смо професор на вечеру.
Incorrect — професор is a masculine animate direct object and needs accusative професора.
✅ Позвали смо професора на вечеру.
We invited the professor to dinner.
2. Giving an inanimate object a genitive-shaped accusative.
❌ Тражим кључа од подрума.
Incorrect — кључ is inanimate, so singular accusative equals nominative.
✅ Тражим кључ од подрума.
I'm looking for the basement key.
3. Using -ом after a soft stem that requires -ем.
❌ Путовали смо с водичом из музеја.
Incorrect — the standard instrumental of водич is водичем.
✅ Путовали смо с водичем из музеја.
We traveled with a guide from the museum.
4. Treating dative, instrumental, and locative plural as separate endings.
❌ Причали смо о новим студенти.
Incorrect — plural locative uses the shared ending -има: студентима.
✅ Причали смо о новим студентима.
We talked about the new students.
Key Takeaways
The masculine paradigm is a connected system. Singular genitive -а, dative/locative -у, and instrumental -ом/-ем do most of the work; the accusative chooses a nominative or genitive shape according to animacy. In the plural, identify the stem—short or -ов-/-ев-—then use -и, -а, -е, and the shared -има. High-frequency pairs such as човек — људи must be learned lexically, while masculine -а nouns remind you that agreement gender and noun-ending class are separate dimensions.
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Start learning Serbian →Related Topics
- Grammatical GenderA1 — The three genders and how to predict them from word endings.
- Animacy in Masculine NounsA2 — Why animate masculines have accusative = genitive.
- The -ov-/-ev- Plural InfixA2 — Why many short masculine nouns insert -ov-/-ev- in the plural.
- What Is a Case? The Seven-Case SystemA1 — Orientation to Serbian's seven grammatical cases.
- The Fleeting 'a' (nepostojano a)B1 — The vowel a that appears and disappears between consonants.
- The Plural Oblique Endings (-ima/-ama)B1 — Why the dative, locative, and instrumental plural all merge.