No. 15,775 in Polish
szybkiej
"Szybkiej" means "fast" or "quick" in the feminine singular genitive or dative case.
In a sentence
Potrzebuję szybkiej reakcji.
I need a quick reaction.
Here 'szybkiej' is an adjective, modifying the feminine singular noun 'reakcji'.
Oczekuję szybkiej odpowiedzi.
I expect a quick reply.
Here 'szybkiej' is used as an adjective agreeing in gender, number, and case with the noun 'odpowiedzi', which is feminine singular in the genitive case.
Unikałem szybkiej jazdy.
I avoided fast driving.
Here 'szybkiej' modifies the noun 'jazdy', showing a descriptive attribute of the noun being feminine singular.
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