Fun fact - in Polish we have separate forms for 1 (singular), 2-4 (plural but nit many) and everything else. Zero is in “everything else”
0 książek
0.5 książki
1 książka
2,3,4 książki
2.5 książki
5 and above książek
5.5 (any other fraction) książki
>100 and a fraction - depends
Singular is for one.
The first plural is for things kind of treated as individual objects.
The second plural is for things that are treated as a bulk/mass.
The moment you use a fraction, the assumption is that you would need to count all I guess, so it’s treated as individual objects.
From this perspective, zero of something is zero plural-not-easily countable. Kind of “Zero OF books” like “Ten OF books”, with of being implied by the form of the word.
0 książek
0.5 książki
1 książka
2,3,4 książki
2.5 książki
5 and above książek
5.5 (any other fraction) książki
>100 and a fraction - depends
Singular is for one.
The first plural is for things kind of treated as individual objects.
The second plural is for things that are treated as a bulk/mass.
The moment you use a fraction, the assumption is that you would need to count all I guess, so it’s treated as individual objects.
From this perspective, zero of something is zero plural-not-easily countable. Kind of “Zero OF books” like “Ten OF books”, with of being implied by the form of the word.