In English a verb's object is just "the object" — help him, trust her, believe me — all the same flat form. Czech is different: a verb governs a case, and while the accusative is the default direct-object case, a sizeable group of common verbs demand the genitive, dative, or instrumental instead. Pomáhat takes a dative object, bát se takes a genitive object, zabývat se takes an instrumental object. These are not deducible from meaning — they are lexical facts to memorise with each verb, exactly like a preposition's case. This page sorts the high-frequency non-accusative verbs by the case their object takes, so you can stop transferring the English flat object onto Czech.
Verbs that take a genitive object
These cluster around fear, asking, noticing, reaching, and ridding — many of them reflexive (se / si). The English equivalents usually have a flat object or a of-phrase.
| Verb | Meaning | Example (genitive object) |
|---|---|---|
| bát se | to be afraid (of) | bojím se tmy (I'm afraid of the dark) |
| ptát se / zeptat se | to ask (about) | ptám se tě (I'm asking you) |
| všímat si / všimnout si | to notice | všiml si chyby (he noticed the mistake) |
| vážit si | to respect, value | vážím si tě (I respect you) |
| dosáhnout | to achieve, reach | dosáhnout cíle (to reach the goal) |
| účastnit se / zúčastnit se | to take part (in) | účastnit se schůze (to attend the meeting) |
| zbavit se | to get rid (of) | zbavit se strachu (to get rid of the fear) |
| dotknout se | to touch | dotkl se zdi (he touched the wall) |
Nebojím se tmy, ale bojím se pavouků.
I'm not afraid of the dark, but I'm afraid of spiders. (tmy, pavouků — genitive objects of bát se)
Vážím si toho, co pro nás děláš.
I appreciate what you do for us. (toho — genitive object of vážit si)
Chtěl bych se zúčastnit té konference.
I'd like to take part in that conference. (té konference — genitive object of zúčastnit se)
The full inventory and the negative-genitive overlaps are on verbs that take the genitive.
Verbs that take a dative object
This is the most important group for an English speaker, because English makes many of these look like plain direct objects: help him, trust her, understand me, believe them. In Czech the person is in the dative — you "give help to someone," "give trust to someone." Think of the dative as the recipient / beneficiary, and most of these click into place.
| Verb | Meaning | Example (dative object) |
|---|---|---|
| pomáhat / pomoct | to help | pomáhám matce (I help my mother) |
| rozumět | to understand | rozumím ti (I understand you) |
| věřit | to believe, trust | věřím tobě (I trust you) |
| patřit | to belong (to) | kniha patří mně (the book is mine) |
| děkovat / poděkovat | to thank | děkuji vám (I thank you) |
| gratulovat / blahopřát | to congratulate | gratuluji ti (I congratulate you) |
| škodit | to harm, be bad for | kouření škodí zdraví (smoking harms health) |
| vyhýbat se | to avoid | vyhýbá se mi (he's avoiding me) |
| líbit se | to please, be liked by | líbí se mi to (I like it) |
Můžeš mi pomoct s tím kufrem?
Can you help me with this suitcase? (mi — dative object of pomoct)
Vůbec ti nerozumím, mluv pomaleji.
I don't understand you at all, speak more slowly. (ti — dative object of rozumět)
Děkuju vám za pomoc a gratuluju k výhře.
Thank you for the help and congratulations on the win. (vám, k výhře — děkovat takes dative + za-thing; gratulovat takes dative + k-thing)
Verbs that take an instrumental object
A smaller group, tied to being/becoming a role, dealing/occupying oneself with, handling, and moving. The role-and-becoming verbs connect directly to the predicate instrumental.
| Verb | Meaning | Example (instrumental object) |
|---|---|---|
| stát se / stávat se | to become | stal se lékařem (he became a doctor) |
| být (in a role) | to be (as a function) | je ředitelem (he is the director) |
| zabývat se | to deal/occupy oneself with | zabývá se hudbou (he deals with music) |
| zacházet (s) | to handle, treat | zachází s tím opatrně (he handles it carefully) |
| hýbat / pohnout | to move (something) | nemůžu hýbat rukou (I can't move my arm) |
| mávat / zamávat | to wave | mává praporem (he's waving a flag) |
| chlubit se | to boast (of) | chlubí se úspěchem (he boasts of his success) |
| trpět | to suffer (from) | trpí nespavostí (he suffers from insomnia) |
Po studiích se stala učitelkou.
After her studies she became a teacher. (učitelkou — instrumental object of stát se)
Celý život se zabývá dějinami umění.
His whole life he's been engaged with the history of art. (dějinami umění — instrumental object of zabývat se)
Babička už nemůže hýbat levou rukou.
Grandma can't move her left arm anymore. (levou rukou — instrumental object of hýbat)
Note the difference between bare-instrumental zabývat se (deals with something) and zacházet + s + instrumental (handles/treats something): the first wants the bare case, the second wants the preposition s. The fuller set is on verbs that take the instrumental.
Why this is worth memorising as raw fact
There is no clean semantic rule that predicts the case from the English meaning, and pretending otherwise would mislead you. Věřit (believe) is dative but vidět (see) is accusative; pomáhat (help) is dative but podporovat (support) is accusative; bát se (fear) is genitive but mít rád (like/love) is accusative. The cases are inherited, idiomatic, and must be drilled per verb. The payoff is large: get the government right and the rest of the sentence — pronouns, adjectives, demonstratives — falls into the correct ending automatically.
Věřím ti, ale nevěřím jemu.
I trust you, but I don't trust him. (ti, jemu — both dative, governed by věřit)
Pomáhám jí, protože si jí vážím.
I help her because I respect her. (jí — dative after pomáhat; jí — genitive after vážit si: same surface form, different case logic)
Common Mistakes
Every error below is the English flat object reasserting itself as a Czech accusative.
❌ Pomáhám mého bratra.
Incorrect — pomáhat takes the dative, not the accusative: pomáhám svému bratrovi.
✅ Pomáhám svému bratrovi.
I'm helping my brother.
❌ Nerozumím tebe.
Incorrect — rozumět takes the dative: nerozumím ti / tobě.
✅ Nerozumím ti.
I don't understand you.
❌ Bojím se tmu.
Incorrect — bát se takes the genitive: bojím se tmy.
✅ Bojím se tmy.
I'm afraid of the dark.
❌ Stal se lékař.
Incorrect — stát se takes the instrumental: stal se lékařem.
✅ Stal se lékařem.
He became a doctor.
❌ Líbím tě.
Incorrect — this isn't 'I like you'; in líbit se the thing liked is the subject and the person is dative: líbíš se mi.
✅ Líbíš se mi.
I like you. (literally: you please to-me)
Key Takeaways
- The accusative is the default object case, but a large group of verbs governs the genitive, dative, or instrumental instead — a lexical fact to memorise per verb.
- Genitive verbs: bát se, ptát se, všímat si, vážit si, dosáhnout, účastnit se, zbavit se, dotknout se.
- Dative verbs: pomáhat, rozumět, věřit, patřit, děkovat, gratulovat, škodit, vyhýbat se, líbit se.
- Instrumental verbs: stát se, být (role), zabývat se, zacházet (s), hýbat, mávat, chlubit se, trpět.
- English's flat object is the trap — help him, trust her, fear it all map onto non-accusative cases in Czech.
Now practice Czech
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Start learning Czech→Related Topics
- Prepositions Sorted by CaseB2 — A master reference grouping the common prepositions under the case each one governs.
- 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 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.
- Verbs Governing the DativeA2 — The dative is one fixed government class in the verb-valency system: a set of verbs whose object is lexically required to stand in the dative, not the accusative.
- Verbs Governing the InstrumentalB2 — Verbs whose complement stands in the instrumental — becoming and remaining a role (stát se lékařem), occupying oneself with something (zabývat se), and moving, waving, boasting, despising, and suffering.