Words ending in -а/-я (which are usually feminine) generally have the plural ending -и, upon dropping of the singular ending.
Serbo-Croatian has three main declensional types, traditionally called a-type, e-type and i-type respectively, according to their genitive singular ending.
The nominative singular ending -ias (sg.
The singular endings exactly track the plural, except the singular "-e" is dropped after certain consonants.
The only difference in their declensions is the masculine accusative singular ending, which is -n in pronouns and -an in adjectives.
-u: words with singular partitive ending -a with the preceding syllable containing vowels a, i, õ or diphthongs ei, äi.
It is found in singular dative endings, in definite endings of adjectives and ordinal numerals.
In all three persons, the ablative singular ending is identical to the accusative singular.
Masculine, feminine and neuter nouns each have their own special nominative singular endings.
Primarily, the singular feminine accusative ending was -ę.