Learn Croatian: Često idemo u školu pješice. - We often go to school on foot.

In Croatian, the verb ending tells you who is doing the action. The -mo at the end of idemo means "we go". You can add mi (we) for emphasis, but it is usually left out.

Why is it u školu and not u škola?

Because you are moving towards a destination. When you use the preposition u (to/into) with verbs of motion like ići, the noun that follows must take the accusative case. For feminine nouns like škola, the ending changes to -u, making it školu.

Does pješice need a preposition like "on" in "on foot"?

No, pješice is an adverb that already means "by foot" or "walking" all by itself. You just place it in the sentence without any extra prepositions.

Could I put često at the end of the sentence?

Yes, word order in Croatian is quite flexible. You could say Idemo u školu pješice često, but placing adverbs of frequency like često (often) before the verb is the most natural and common choice.