oneThis plural form is used for numbers like: n mod 10 is 1 and n mod 100 is not 11
1 закрыт
fewThis plural form is used for numbers like: n mod 10 in 2..4 and n mod 100 not in 12..14
manyThis plural form is used for numbers like: n mod 10 is 0 or n mod 10 in 5..9 or n mod 100 in 11..14
otherThis plural form is used for numbers like: everything else