This is the 3306th most frequent Polish word.
truskawek
"Truskawek" is the genitive plural form of "truskawka," meaning "strawberry" in English.
Here, 'truskawek' is the genitive plural form of 'truskawka,' used because of the word 'ile' (how many), which requires the genitive case in this context.
Nie mogę uwierzyć, ile truskawek zjadłem na pikniku.
I can't believe how many strawberries I ate at the picnic.
In this sentence, 'truskawek' is also in the genitive plural form, as it follows the word 'trochę' (some), which requires the genitive case for the noun it modifies.
Czy mogę dostać trochę truskawek do deseru?
Can I have some strawberries for dessert?
'Truskawek' is in the genitive plural form to pair with 'koszyk' (basket), as in Polish, quantities and containers often use the genitive case for the contained items.