Most Czech verbs that have a clear "thing the action is done to" take the accusative — the default object case. But a tight, high-frequency cluster of verbs breaks that pattern and demands the genitive instead. The catch for English speakers is that in English these all look like perfectly ordinary direct-object verbs: "I fear the storm", "I ask the teacher", "I noticed the mistake". Nothing in the English signals that Czech wants the genitive. You have to learn each of these verbs together with its case, the way you learn a noun together with its gender. This page gives you the core set, grouped by the meaning that ties them together.
Why these verbs, and not others?
There is loose semantic logic — these verbs cluster around fearing, asking, noticing/respecting, reaching/attaining, and getting rid of — but the logic is not reliable enough to predict government from meaning. Plenty of "fear"-adjacent or "reach"-adjacent verbs take other cases. So treat the grouping below as a memory aid, not a rule you can extend. The safe procedure is: learn each verb as a lexical unit, e.g. write it in your notes as bát se + gen, dosáhnout + gen.
Fearing and being startled: bát se, leknout se, obávat se
The "fear" group is the most common entry point. bát se "to be afraid (of)", its more bookish synonym obávat se "to fear / be apprehensive about", and leknout se "to be startled / get a fright (by)" all govern the genitive of whatever causes the fear.
Bojím se bouřky, hlavně toho hromu.
I'm afraid of the storm, especially the thunder.
Lekl jsem se toho psa, vyběhl zničehonic.
That dog startled me, it ran out of nowhere.
Obávám se nejhoršího.
I fear the worst. (obávat se is the more formal register)
Note the contrast that catches everyone: plain bát se + genitive means "be afraid of" something, but bát se o + accusative means "be afraid for / worry about" someone. Bojím se bouřky (gen) = I'm scared of the storm; Bojím se o tebe (acc) = I'm worried about you. The bare-genitive version is on this page; the prepositional bát se o belongs with the prepositional verbs.
Asking: ptát se, zeptat se
ptát se (imperfective) and zeptat se (perfective) "to ask" govern the genitive of the person you ask. This surprises English speakers twice over: first because "ask the teacher" looks like a plain accusative, and second because the person asked and the thing asked about behave differently — the thing asked about comes via na + accusative.
Ptám se učitele, jestli ten test bude těžký.
I'm asking the teacher whether the test will be hard. (učitele = genitive of the person asked)
Zeptej se mámy, jestli můžeme jít ven.
Ask mum whether we can go out.
Zeptal se mě na cestu.
He asked me for directions. (mě = gen of person; na cestu = na + acc for the topic)
So the full shape is ptát se + někoho (gen) + na něco (acc) — "ask someone about something." Keep the two halves straight: the person is genitive, the topic is na + accusative.
Noticing and respecting: všímat si, vážit si
všímat si / perfective všimnout si "to notice / pay attention to" and vážit si "to respect / value / hold in esteem" both carry the reflexive si and both govern the genitive. They share a flavour of "directing attention or regard toward a thing."
Nevšiml si té chyby, dokud nebylo pozdě.
He didn't notice the mistake until it was too late.
Vážím si tě a toho, co pro nás děláš.
I respect you and what you do for us.
Všimni si, jak se ti rozsvítí oči, když o ní mluvíš.
Notice how your eyes light up when you talk about her.
In Vážím si tě, the tě is the genitive of ty (you), not the accusative — though for the pronoun ty the genitive and accusative happen to share the form tě, which hides the case until you swap in a full noun: Vážím si svého učitele (genitive of učitel).
Reaching and attaining: dosáhnout, dotknout se
dosáhnout / imperfective dosahovat "to reach / achieve / attain" and dotknout se / imperfective dotýkat se "to touch" govern the genitive of what is reached or touched. The semantic thread is reaching out to make contact with.
Konečně dosáhl svého cíle a otevřel si vlastní restauraci.
He finally reached his goal and opened his own restaurant.
Nedosáhnu na tu horní polici.
I can't reach the top shelf. (here dosáhnout takes na + acc for a physical reach — see the note below)
Ani se toho nedotýkej, je to ještě horké.
Don't even touch it, it's still hot.
A useful subtlety: dosáhnout in the abstract sense "achieve/attain (a goal, a result)" takes the bare genitive (dosáhnout úspěchu "achieve success", dosáhnout cíle "reach a goal"), while dosáhnout in the physical sense "reach (something with your hand)" usually takes na + accusative (dosáhnout na polici "reach the shelf"). Learn the abstract-genitive use as the core pattern here.
Getting rid of: zbavit se, vzdát se
zbavit se / imperfective zbavovat se "to get rid of / rid oneself of" and vzdát se "to give up / renounce / surrender" govern the genitive of what is shed. The thread is parting with something.
Konečně se zbavil toho starého auta.
He finally got rid of that old car.
Nikdy se nevzdám své svobody.
I will never give up my freedom.
Musíš se zbavit toho strachu, jinak nikam nepostoupíš.
You have to get rid of that fear, otherwise you'll get nowhere.
Participating: účastnit se, zúčastnit se
účastnit se (imperfective) and zúčastnit se (perfective) "to participate in / take part in / attend" govern the genitive of the event. English uses "in", which gives no hint about the genitive — and crucially, there is no Czech preposition here; the genitive stands bare.
Účastním se každý rok té soutěže.
I take part in that competition every year.
Zúčastnil ses té konference?
Did you attend the conference?
Zúčastnilo se jednání přes sto lidí.
More than a hundred people took part in the negotiations.
The genitive of negation
There is a second, separate reason a Czech object can appear in the genitive: the genitive of negation. With some verbs, when the verb is negated, a former accusative object can shift into the genitive — a leftover of an older, once-obligatory pattern. In modern Czech this is largely optional and now sounds elevated or set-phrasey rather than everyday, but you will meet it in writing.
Nemám času na hlouposti.
I have no time for nonsense. (času = genitive of negation; the everyday version uses the accusative čas)
This is a different mechanism from lexical government — here the genitive comes from the negation, not from the verb's fixed valency. The verbs on the rest of this page take the genitive whether or not they are negated. For the full treatment of the negation rule, see verbs and the genitive and aspect and negation.
Common Mistakes
❌ Bojím se bouřku.
Incorrect — bát se governs the genitive, so 'the storm' must be the genitive bouřky, not the accusative bouřku.
✅ Bojím se bouřky.
I'm afraid of the storm.
❌ Ptám se učitele na test.
Actually correct — but learners often write 'ptám se učitel' (nominative) or 'ptám se učitele test' (no na); the person is genitive and the topic needs na + acc.
✅ Ptám se učitele na ten test.
I'm asking the teacher about that test.
❌ Nevšiml si tu chybu.
Incorrect — všimnout si governs the genitive; 'the mistake' is the genitive té chyby, not the accusative tu chybu.
✅ Nevšiml si té chyby.
He didn't notice the mistake.
❌ Zúčastnil se na konferenci.
Incorrect — zúčastnit se takes a bare genitive with no preposition; the na is intrusion from English/other Slavic languages.
✅ Zúčastnil se konference.
He attended the conference.
❌ Zbavil se to staré auto.
Incorrect — zbavit se governs the genitive: 'that old car' is toho starého auta.
✅ Zbavil se toho starého auta.
He got rid of that old car.
Key Takeaways
- A small, high-frequency set of verbs governs the genitive, not the accusative: store each as a lexical fact (bát se + gen).
- Fearing/startling: bát se, obávat se, leknout se. Asking: ptát se / zeptat se (genitive of the person; topic via na
- acc).
- Noticing/respecting: všímat si / všimnout si, vážit si. Reaching/attaining: dosáhnout, dotknout se.
- Riddance: zbavit se, vzdát se. Participating: účastnit se / zúčastnit se — bare genitive, no preposition.
- The genitive of negation is a separate, now largely optional phenomenon; don't confuse it with these verbs' fixed government.
- Watch bát se
- gen ("afraid of") versus bát se o
- acc ("worried about") — same verb, different case, different meaning.
- gen ("afraid of") versus bát se o
Now practice Czech
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Start learning Czech→Related Topics
- Verb Government: Which Case Your Verb NeedsA2 — Every Czech verb fixes the case of its object, and that case is a lexical fact you learn with the verb.
- Verbs Governing the AccusativeA2 — The accusative is the default object case in Czech: the vast majority of transitive verbs put their direct object in the accusative, and only a marked minority demand the dative, genitive, or instrumental instead.
- Verbs That Govern the GenitiveB1 — The set of Czech verbs whose object stands in the genitive rather than the accusative.
- Aspect and NegationB2 — Why negation tends to pull toward the imperfective, and what a negated perfective really denies.
- The Genitive of PossessionA1 — Using the genitive to express possession and the 'of' relationship between two nouns.