Breakdown of Przed pracą muszę znaleźć ten zapasowy kołek.
ten
this (m)
praca
work
musieć
to have to
znaleźć
to find
Questions & Answers about Przed pracą muszę znaleźć ten zapasowy kołek.
Why is it pracą and not pracę or pracy?
The preposition przed (before or in front of) requires the Instrumental case. Since praca (work) is a feminine noun ending in -a, it takes the -ą ending in the Instrumental case, giving us przed pracą.
Why do we use znaleźć here instead of znajdować?
Znaleźć is the perfective (completed action) form of "to find." Since the speaker needs to successfully complete the action of finding the dowel just once before work, the perfective is required. Znajdować is imperfective and would imply an ongoing process or finding something repeatedly.
Why doesn't ten zapasowy kołek change its ending if it's the direct object of the verb?
It is in the Accusative case, but the form looks identical to the dictionary form. Kołek (dowel/peg) is a masculine inanimate noun. For inanimate masculine nouns, the Accusative is exactly the same as the Nominative. If it were an animate noun, the adjectives and noun would take Genitive-style endings (like -ego and -a).
This lesson is about brakować. If the reason I have to find it is because "I am missing the spare dowel," how would I say that?