When a Czech adjective or past-tense verb refers to a single noun, agreement is straightforward — you match its gender, number, and case. The hard cases are the two this page is about: when one adjective refers to several nouns of different genders at once, and when the subject is a numeral phrase. English does neither of these things (our adjectives and verbs are invariant), so there is no instinct to transfer. Czech has a clean resolution system for both, and learning it is what makes your plural sentences sound native rather than translated.
Resolution with conjoined nouns
When Petr and Jana are tired, the predicate adjective has to be a single form covering both — but Petr is masculine animate and Jana is feminine. Czech resolves the clash with a fixed hierarchy:
masculine animate > masculine inanimate / feminine > neuter
In practice this collapses to one decisive rule: if any referent in the group is a masculine animate (a male person or animal), the whole group takes the masculine animate plural — the ending -í on the adjective and -i on the past participle. Only if there is no masculine animate does the next rung matter.
Petr a Jana jsou unavení.
Petr and Jana are tired. (masc. anim. present → unavení)
Petr a Jana přišli pozdě.
Petr and Jana arrived late. (masc. anim. past → přišli, -i)
Even one man among a hundred women pulls the whole group into the masculine animate. This is not sexism baked into grammar so much as a syntactic default — masculine animate is the morphologically "strongest" gender — but it does mean you must scan the conjoined subject for any male before you choose the ending.
When there is no masculine animate
If the group contains no masculine animate noun, you drop to the lower rungs. A mix of masculine inanimate and/or feminine takes the form ending in -é (adjective) and -y (past participle). A group of purely neuter nouns takes -á (adjective) and -a (past participle).
Stůl a židle byly staré.
The table and the chair were old. (masc. inanim. + fem., no masc. anim. → staré / byly)
Auta a kola byla zaparkovaná na chodníku.
The cars and the bikes were parked on the sidewalk. (all neuter → byla, -a / zaparkovaná, -á)
The neuter-plural endings deserve their own spotlight because learners constantly miss them. The past participle of a neuter plural ends in -a, distinct from both the masculine -i and the feminine -y. Compare the three lined up:
| Subject | Gender | Past participle | Predicate adjective |
|---|---|---|---|
| muži | masc. animate | přišli (-i) | unavení (-í) |
| ženy | feminine | přišly (-y) | unavené (-é) |
| města | neuter | byla (-a) | velká (-á) |
Muži přišli, ženy přišly a děti přišly taky.
The men arrived, the women arrived, and the children arrived too.
Ta města byla krásná, ale draho se v nich žilo.
Those cities were beautiful, but living in them was expensive. (neuter plural → byla / krásná)
For the full treatment of the past-tense side of this, see mixed-gender plural agreement in the past tense; for the broader subject–verb picture, see subject–verb and predicate agreement.
Agreement after numerals: the 2–4 vs 5+ split
Numerals do something English never forces: they change the case of the whole counted phrase, and that dictates how the adjective behaves. There are two regimes.
After 2, 3, 4 — nominative/accusative plural
With dva/dvě, tři, čtyři the counted noun and its adjective stand in the ordinary nominative (or accusative) plural, and the verb is a normal plural. Everything agrees the way it would without a number — the numeral just sits in front.
Na chodbě stáli dva noví studenti.
Two new students were standing in the hallway. (masc. anim. nom. pl.: dva noví studenti, plural verb stáli)
Koupila jsem tři velké knihy.
I bought three big books. (fem. acc. pl.: tři velké knihy)
Stála tam čtyři malá auta.
Four small cars were standing there. (neuter nom. pl.: čtyři malá auta, neuter plural verb stála)
After 5 and up — genitive plural, neuter-singular verb
With pět and higher, the counted phrase flips into the genitive plural — and so does the adjective. On top of that, the predicate verb goes into the neuter singular, as if the quantity were an abstract "amount." This is the combination learners find most alien: a plural meaning, a genitive-plural noun and adjective, but a singular verb.
Přišlo pět nových studentů.
Five new students arrived. (gen. pl.: pět nových studentů; verb přišlo, neuter sg.)
Na poličce leželo deset starých knih.
Ten old books lay on the shelf. (gen. pl.: deset starých knih; verb leželo, neuter sg.)
V garáži stálo šest velkých aut.
Six big cars stood in the garage. (gen. pl.: šest velkých aut; verb stálo, neuter sg.)
Lay the two regimes side by side and the switch is unmistakable:
| Number | Phrase | Noun + adjective case | Verb |
|---|---|---|---|
| 2–4 | dva noví studenti | nominative plural | plural (přišli) |
| 2–4 | tři velké knihy | nominative plural | plural (byly) |
| 5+ | pět nových studentů | genitive plural | neuter singular (přišlo) |
| 5+ | deset velkých knih | genitive plural | neuter singular (bylo) |
The neuter-singular verb after 5+ is the most counter-intuitive piece. The logic is that pět studentů is felt as a quantity ("a fiveness of students") rather than as five individual actors, and a quantity is grammatically neuter and singular. This is the same impulse behind quantifier subjects like mnoho lidí přišlo ("many people came," neuter singular). For the genitive-plural government itself, see five-plus and the genitive. Note that this genitive-plural rule, like the verb rule, holds only in the nominative/accusative — in oblique cases the noun and adjective agree with the declined numeral instead, a point covered in the numbers group.
Putting both systems together
Mixed gender and numerals can combine. Two men and a woman is still a counted 2–4 phrase, so it takes the nominative plural — and because a masculine animate is present, the verb resolves to -i.
Dva muži a jedna žena seděli u baru.
Two men and a woman were sitting at the bar. (masc. anim. present → seděli)
Pět žen a jeden muž čekalo na nádraží.
Five women and one man were waiting at the station. (5+ phrase → neuter sg. verb čekalo)
That second example shows the numeral regime winning the tug-of-war: with a 5+ leading numeral the verb is neuter singular čekalo, even though there is a masculine animate in the group — the quantity reading overrides gender resolution. This is a genuinely subtle interaction, and even native speakers sometimes waver here in speech.
Common mistakes
The two recurring English-speaker errors are using a singular adjective after a number, and botching the masculine-animate resolution (or forgetting the distinct neuter -a).
❌ Koupila jsem tři velkou knihu.
Incorrect — after 2–4 the noun and adjective are plural: tři velké knihy.
✅ Koupila jsem tři velké knihy.
I bought three big books.
❌ Přišlo pět nový studenti.
Incorrect — 5+ takes the genitive plural throughout: pět nových studentů.
✅ Přišlo pět nových studentů.
Five new students arrived.
❌ Petr a Jana jsou unavené.
Incorrect — a masculine animate is present, so it must be unavení.
✅ Petr a Jana jsou unavení.
Petr and Jana are tired.
❌ Ta auta byly nová.
Incorrect — neuter plural takes -a: ta auta byla nová.
✅ Ta auta byla nová.
Those cars were new.
❌ Pět studentů přišli.
Incorrect — after 5+ the verb is neuter singular: pět studentů přišlo.
✅ Pět studentů přišlo.
Five students arrived.
Key takeaways
- Conjoined subjects resolve by hierarchy: masculine animate > masc. inanim. / fem. > neuter. One male in the group forces -í / -i.
- With no masculine animate, mixed groups take -é / -y; all-neuter groups take -á / -a.
- The neuter plural past participle is distinct: muži přišli / ženy přišly / města byla.
- Numerals 2–4: nominative-plural noun and adjective, plural verb (dva noví studenti přišli).
- Numerals 5+: genitive-plural noun and adjective, neuter-singular verb (pět nových studentů přišlo).
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Start learning Czech→Related Topics
- Adjective–Noun AgreementA2 — Every Czech adjective copies its noun's gender, number, and case — so the same adjective wears a different ending in nearly every phrase, and getting the noun right but the adjective wrong is still an error.
- Masculine Animate Nominative Plural and Its AlternationsB1 — The special -í plural for animate-male nouns (mladí muži) and the consonant softening it triggers.
- Plural Agreement: -li, -ly, -laA2 — How the past-tense participle chooses between -li, -ly and -la in the plural — and the rule that one masculine animate noun changes everything.
- Subject–Verb and Predicate AgreementB1 — Matching the verb and predicate to the subject in person, number, and gender.
- Cardinal Numbers 5 and Up: the Genitive Plural RuleA2 — Why pět, deset, sto and the higher numbers take a genitive-plural noun and a singular neuter verb — the central oddity of Czech numeral syntax.