Most Czech transitive verbs take their object in the accusative — that is the default direct-object case. But a small, lexically fixed group of verbs demands the genitive instead. There is no way to predict membership from meaning alone, and English is no help, because English marks none of these objects specially: "I'm afraid of the dark," "I noticed the details," and "I touched it" all look like ordinary objects in English. In Czech they are genitive. You simply have to learn which verbs belong to this club, and most of them are reflexive (carrying se or si).
Why a genitive object at all?
The genitive's oldest job is partial involvement or direction toward something rather than total affecting of it. Many of these verbs make sense through that lens: to fear something is to be oriented toward it apprehensively; to ask after something is to reach toward information; to take notice of something is to single a part of it out for attention; to touch something is to make contact with a point of it, not consume the whole. The accusative would imply you grab the object whole; the genitive keeps a certain partial, oriented relationship. That intuition won't generate the full list for you, but it makes the pattern feel less random.
The core list
Here are the most important verbs that govern the genitive. Notice how many are reflexive.
| Verb | Meaning | Example object (genitive) |
|---|---|---|
| bát se | to fear, be afraid of | bojím se tmy (the dark) |
| ptát se / zeptat se | to ask | ptám se cesty (the way) |
| všímat si / všimnout si | to notice | všímám si detailů (the details) |
| týkat se | to concern, relate to | týká se nás všech (all of us) |
| účastnit se / zúčastnit se | to take part in | účastním se schůze (the meeting) |
| dosáhnout | to achieve, reach | dosáhl úspěchu (success) |
| vážit si | to respect, value | vážím si tvé pomoci (your help) |
| zbavit se / zbavovat se | to get rid of | zbavil se strachu (the fear) |
| nabýt / nabývat | to acquire, gain | nabyl majetku (property) |
| dotknout se / dotýkat se | to touch | dotkl se zdi (the wall) |
bát se — the verb you'll meet first
bát se ("to fear, be afraid of") is the one beginners hit earliest. English "afraid of" tempts learners to hunt for a preposition, but Czech needs none — the object simply goes into the genitive.
Bojím se tmy a hlavně pavouků.
I'm afraid of the dark and especially of spiders.
Nebojte se psa, je úplně hodný.
Don't be afraid of the dog, he's totally friendly.
Děti se bály bouřky celou noc.
The children were afraid of the storm all night.
Watch the endings: tma → tmy, pavouci → pavouků, pes → psa, bouřka → bouřky — all genitive. That visible case ending is the whole point; the verb forces it.
ptát se / zeptat se — asking
ptát se (imperfective) and zeptat se (perfective) put the thing or person you ask after into the genitive. If you ask a person, the person is genitive; what you ask about often comes with na + accusative.
Zeptej se učitele, jestli to bude ve zkoušce.
Ask the teacher whether it'll be on the exam.
Ptám se tě naposledy: půjdeš s námi?
I'm asking you for the last time: are you coming with us?
Here učitel → učitele and ty → tě are genitive. For the aspect pair in detail, see ptát se / zeptat se.
The reflexive-genitive cluster
A striking number of genitive verbs carry si or se. Grouping them helps you remember the case goes with the whole reflexive unit.
Vážím si toho, co pro nás děláš.
I appreciate what you do for us.
Všiml sis té nové kavárny na rohu?
Did you notice that new café on the corner?
Konečně se zbavil té staré rozbité ledničky.
He finally got rid of that old broken fridge.
Zúčastnili jsme se mezinárodní konference.
We took part in an international conference.
In each one the object is genitive: to → toho, ta nová kavárna → té nové kavárny, ta stará rozbitá lednička → té staré rozbité ledničky, mezinárodní konference → mezinárodní konference (this last is a soft feminine, where nominative and genitive singular look alike — the case is still genitive, even though the form doesn't change). Note how the adjectives agree into the genitive too, which is your best visual confirmation.
dosáhnout and nabýt — reaching and acquiring
dosáhnout ("to achieve, attain, reach") and the bookish nabýt ("to acquire, come into") both take the genitive of the thing attained.
Tvrdou prací dosáhla skvělých výsledků.
Through hard work she achieved excellent results.
Postupně nabyl dojmu, že mu nikdo nevěří.
He gradually got the impression that nobody believed him.
Contrast with accusative-object verbs
To feel the difference, line a genitive verb up against its near-synonym that takes the ordinary accusative. The meaning is similar; the case is not.
Bojím se té zkoušky.
I'm afraid of that exam. (bát se → genitive)
Mám strach z té zkoušky.
I'm scared of that exam. (mít strach → preposition z + genitive)
And against a plain accusative verb of perception:
Všiml si té chyby okamžitě.
He noticed that mistake immediately. (všimnout si → genitive: té chyby)
Viděl tu chybu okamžitě.
He saw that mistake immediately. (vidět → accusative: tu chybu)
Same demonstrative, two different forms: té chyby (genitive after všimnout si) versus tu chybu (accusative after vidět). The verb, not the meaning, dictates the case. For the default pattern, review accusative direct objects.
Common Mistakes
❌ Bojím se tmu.
Incorrect — bát se takes the genitive (tmy), not the accusative (tmu).
✅ Bojím se tmy.
I'm afraid of the dark.
❌ Bojím se z bouřky.
Incorrect — don't add a preposition for English 'of'; bát se governs the genitive directly.
✅ Bojím se bouřky.
I'm afraid of the storm.
❌ Zeptej se učitel na to.
Incorrect — the person you ask goes in the genitive (učitele), not the nominative.
✅ Zeptej se učitele na to.
Ask the teacher about it.
❌ Všiml jsem si tu novou kavárnu.
Incorrect — všimnout si governs the genitive: té nové kavárny, not the accusative.
✅ Všiml jsem si té nové kavárny.
I noticed the new café.
❌ Zúčastnili jsme se konferenci.
Incorrect — účastnit se takes the genitive (konference), not the accusative (konferenci).
✅ Zúčastnili jsme se konference.
We took part in the conference.
Key Takeaways
- A fixed set of verbs — bát se, ptát se, všímat si, týkat se, účastnit se, dosáhnout, vážit si, zbavit se, nabýt, dotknout se — takes a genitive object, not the default accusative.
- English marks none of these specially, so the case must be memorized as part of the verb.
- Do not insert a preposition for English "of/about": bojím se tmy, never *bojím se z tmy.
- Many are reflexive (se/si); the genitive belongs to the whole unit, and any adjectives agree into the genitive.
- For the broader account of verb government and how this overlaps with the genitive of negation, follow the links.
Now practice Czech
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Start learning Czech→Related Topics
- Verbs Governing the GenitiveB2 — A core set of everyday Czech verbs — fear, asking, noticing, reaching, riddance — whose object stands in the genitive, not the accusative English speakers expect.
- The Genitive of PossessionA1 — Using the genitive to express possession and the 'of' relationship between two nouns.
- 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.
- The Accusative as Direct ObjectA1 — How the Czech accusative case marks the direct object — the noun that receives the action — and why the ending, not word order, does the work.
- ptát se / zeptat se — to ask (a question)A2 — The reflexive aspect pair for asking a question, its genitive-person plus na+accusative-topic government, the obligatory clitic se, and how it differs from žádat and prosit.
- The Genitive of NegationB2 — The optional, receding genitive object under negation — nemám času vs. nemám čas — its partitive flavour, and the obligatory genitive after není.