Folyóban

Folyóban is a Hungarian locative form of the noun folyó (river), meaning “in the river” or “inside the river.” It marks location and is used when describing where something is or occurs within the river’s space.

Grammatically, folyóban is formed by adding the locative suffix -ban to the noun folyó. Hungarian uses -ban/-ben according to vowel harmony; with a word ending in a back vowel like -ó, the form is -ban, yielding folyóban. It functions as a post-nominal locative expression and is typically used with verbs of position, such as van (is), található (is located), úszik (swims), or történik (occurs).

Examples: A hal a folyóban úszik. The fish is swimming in the river. A kő a folyóban van. The stone is in the river. A kagyló a folyóban található. The shell is found in the river.

Usage notes: Folyóban specifies a physical location inside the river. It is not used for meanings like “along the river,” which would be expressed with a phrase such as a folyó mentén. In some contexts, other constructions or cases may be preferred, but folyóban clearly communicates a location within the river itself.