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In a sentence
Chvíľu potrvá, kým budeme pripravení.
It'll be a while until we're ready.
Potrvá mi dlho spraviť všetky veci, ktoré chcem.
It'll take me a long time to do all the things I want to do.
Skutočné priateľstvo potrvá večne.
A true friendship will last forever.
Ako dlho to potrvá?
How long's that going to take?
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Includes Tatoeba example sentences when present.
Full attribution on References.