potebují
Potřebují is the third-person plural present tense form of the Czech verb potřebovat, meaning to need or to require. It is used when the subject is they (oni) and the object is something they need. In standard Czech, the spelling with a háček on r and the final í is required: potřebují. The nonstandard form potebují without diacritics is a common misspelling or simplification, especially in texts that omit diacritics.
The verb potřebovat is transitive and takes its direct object in the accusative. For example: Oni potřebují
Conjugation in the present tense (indicative) of potřebovat is as follows: já potřebuji, ty potřebuješ, on/ona/ono
Variants and colloquial usage: in spoken Czech, a common informal form for 1st person singular is potřebuji
In summary, potřebuji and jeho relatives form the core of Czech expressions of necessity, with potřebují serving