Bosnian grammar

• Mobile 'a' is inserted between two final consonants of the nominative singular to ease pronunciation. It is added only for convenience when necessary. So, in adjectives that end in a +consonant, it usually will be mobile 'a'.

Examples

Dobar, Good (m)
Dobra, Good (f)
Dobro, Good (n)

Teak, heavy or difficult (m)
Teka, heavy or difficult (f)
Teko, heavy (n)