Learn Croatian: Kamo ide ovaj autobus? - Where is this bus going?

In Croatian, you must use kamo when asking "where to?" (a direction or destination). Gdje is only used for "where at?" (a fixed location). Since the bus is moving toward a destination, we use kamo with the verb of motion ići.

Why is the verb form ide?

The subject of the sentence is autobus (bus). Because a bus is an "it" (third-person singular), we use ide, which is the "he/she/it" form of the verb ići (to go).

Why is it ovaj autobus and not ovo autobus?

Autobus is a masculine noun. In Croatian, pointing words like "this" have to match the gender of the noun they describe. So, we use the masculine form ovaj. If the noun were feminine, it would be ova, and for a neuter noun, ovo.

Could I say "Kamo ovaj autobus ide?" instead?

Yes! Croatian word order is quite flexible. Kamo ide ovaj autobus? is the most natural and common way to ask this, keeping the verb right after the question word, but putting the subject before the verb is also perfectly fine.