Questions & Answers about Moj sin je danas nemirniji nego jučer.
Moj sin is in the nominative case because it is the subject of the sentence: my son is the one who is more restless.
Moj matches sin in:
That is why you get:
- moj sin = my son
- not moja sin or moje sin
Croatian possessive words must agree with the noun they describe.
Croatian does not have articles like English the and a/an.
So:
- sin can mean a son or the son
- moj sin means my son
Croatian usually makes the meaning clear from context instead of using articles.