koncertující

Koncertující is a present active participle in Czech formed from the verb koncertovat, meaning to perform a concert. It literally translates to "performing a concert" and is used to describe someone or something that is currently engaging in a concert or is characterized by performing concerts. The form can function as an adjective, modifying a noun, or appear predicatively in a sentence.

In usage, concertující behaves like an ordinary adjective and agrees with the gender and number of the noun it modifies. Examples include concertující hudebník (a musician performing a concert) or concertující kapela (a band performing). The participle can also appear in a predicative position with a linking verb, though this is less common; for instance, Kapela je koncertující.

Grammatically, concertující is a suffixal formation with -ující, typical for Czech present active participles. The endings adapt to case, number, and gender (e.g., koncertujícího hudebníka in the genitive singular). The concept is parallel in related languages; in Slovak the cognate form is koncertujúci.

The term is widely used in descriptive or journalistic contexts to emphasize ongoing activity—namely, that a performer or ensemble is currently giving or about to give a concert. It is distinct from more general verbs meaning “to perform” and from other participles by specifically signaling the act of performing a concert.

See also: Czech grammar of present active participles; concert (koncert) in Czech; related forms in Slovak (koncertujúci).