Transitive and Intransitive Verbs | Czech Grammar

A transitive verb takes a direct object — something the action is done to: I read a book, she sees a dog. An intransitive verb does not — it describes a state or motion with no receiver: I sleep, he lies down. That much is the same in Czech and English. What is not the same — and what trips up every English speaker — is the case the object stands in. English has no cases left, so it lets word order do the work; Czech marks the object with an ending, and that ending is not always the accusative you would expect. Learning a Czech verb means learning, as a single package, whether it takes an object and which case that object takes.

Transitive verbs and the accusative

The default case for a direct object is the accusative. Most verbs that take an object — vid ět (to see), číst (to read), mít (to have), kupovat (to buy), dělat (to do) — put that object in the accusative. This is the case the noun's "object form" tables are built around.

Vidím psa na druhé straně ulice.

I see a dog on the other side of the street.

Celý večer čtu tu knihu.

I've been reading that book all evening.

Máme nové auto, koupili jsme ho minulý týden.

We have a new car, we bought it last week.

In vidím psa, pes ("dog") becomes accusative psa; in čtu knihu, kniha ("book") becomes knihu; in máme auto, the neuter auto looks unchanged but is grammatically accusative. These are your bread-and-butter transitive verbs, and for them the English intuition "verb + object" works cleanly.

Intransitive verbs take no object

Some verbs simply cannot take a direct object at all. Spát (to sleep), ležet (to lie), sedět (to sit), stát (to stand), běžet (to run) describe a state or a manner of being, not something done to a thing. You can add where or how long, but there is no object for the action to land on.

V neděli spím dlouho do rána.

On Sundays I sleep late into the morning.

Celé odpoledne ležel na gauči a nic nedělal.

He lay on the sofa the whole afternoon doing nothing.

You cannot "sleep something" or "lie something" — these verbs have no object slot, in Czech just as in English.

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A handful of verbs sit on the fence: the same verb can be transitive or intransitive depending on meaning. Vařit is transitive in vařím polévku ("I'm cooking soup") but intransitive in voda už vaří ("the water is already boiling"). When in doubt, ask whether there is a thing the action lands on — if there is, the verb is being used transitively and needs an object case.

The trap: not every object is accusative

Here is where Czech parts ways with English. A whole set of very common verbs take an object, but govern it in the genitive, dative, or instrumental instead of the accusative. The English translation gives you no warning, because English marks all these the same way — with a plain object or a preposition.

Verb	Object case	Example	English
pomáhat	dative	pomáhat učiteli	to help the teacher
rozumět	dative	rozumět otázce	to understand the question
bát se	genitive	bát se tmy	to be afraid of the dark
ptát se	genitive	ptát se cizince	to ask a stranger
stát se	instrumental	stát se učitelem	to become a teacher

Compare two sentences that look identical in English — both are just "verb + object" — but split apart in Czech:

Mám nové auto.

I have a new car. (auto = accusative)

Rozumím učiteli.

I understand the teacher. (učiteli = dative)

Mám takes the accusative auto; rozumím takes the dative učiteli. Nothing in the English "I have a car / I understand the teacher" hints that one is accusative and the other dative. The case lives in the Czech verb, not in the meaning.

Pomáhám mamince s nákupem.

I'm helping mum with the shopping. (mamince = dative)

Bojím se velkých psů.

I'm afraid of big dogs. (velkých psů = genitive)

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You cannot read the case off the English. "To help someone" feels like a direct object, so learners reach for the accusative — but pomáhat governs the dative: pomáhat někomu, never pomáhat někoho. Each verb's case is a fact to be memorised with the verb, exactly as you memorise its meaning. The full inventory, organised by case, is on Verb Government: Overview and Verbs by Case.

Aspect does not change the government

A reassuring fact: a verb's two aspect partners govern the same case. The perfective and imperfective halves of a pair differ in how they view the action — as a whole or as a process — but they take their object in the identical case. Pomáhat and its perfective pomoci both take the dative; kupovat and koupit both take the accusative. So once you have learned the case for one partner, you have it for both.

Pomáhal jsem sousedovi celé léto.

I helped my neighbour all summer. (imperfective, dative)

Pomohl jsem sousedovi s tím jednou.

I helped my neighbour with it once. (perfective, dative)

Notice sousedovi (dative) stays put across both aspects. The case is a fixed property of the verb, untouched by aspect — see What Is Verbal Aspect? for how the two halves otherwise differ.

How to learn it

Treat the governed case as part of the verb's dictionary entry. When you meet a new verb, learn it in the frame verb + question word:

pomáhat *komu?* (dative — "help whom?")
bát se *čeho?* (genitive — "fear what?")
vidět *koho/co?* (accusative — "see whom/what?")
stát se *čím?* (instrumental — "become what?")

These question words (komu, čeho, koho, čím) are themselves case-marked, so they double as a label for the case the verb wants. The detailed lists are split across Dative Verbs and Genitive Verbs.

Common mistakes

❌ Pomáhám maminku.

Incorrect — pomáhat takes the dative, not the accusative.

✅ Pomáhám mamince.

I'm helping mum.

The English "help mum" looks like a direct object, but pomáhat governs the dative mamince.

❌ Rozumím tě.

Incorrect — rozumět takes the dative ti, not the accusative tě.

✅ Rozumím ti.

I understand you.

❌ Bojím se tmu.

Incorrect — bát se governs the genitive, not the accusative.

✅ Bojím se tmy.

I'm afraid of the dark.

❌ Stal se učitel.

Incorrect — stát se takes the instrumental, not the nominative.

✅ Stal se učitelem.

He became a teacher.

"Become" links to a noun, so English speakers leave it in the plain (nominative) form; Czech puts it in the instrumental.

Key takeaways

Transitive verbs take an object; intransitive verbs (spát, ležet, sedět) do not.
The default object case is the accusative (vidím psa, čtu knihu), but it is not the only one.
Many high-frequency verbs govern the dative (pomáhat, rozumět), genitive (bát se, ptát se), or instrumental (stát se).
You cannot deduce the case from the English translation — learn it with the verb.
Aspect does not change the governed case: both partners of a pair take the same case.

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