Learn Italian: Devi andare alla stazione. - You have to go to the station.

Devi is a modal verb meaning 'you have to' or 'you must'. When you have a modal verb followed by another action, the second verb always stays in its infinitive (unconjugated) form. So, it is devi andare (you have to go), just like in English!

Where is the word for 'you' in this sentence?

In Italian, you usually drop the subject pronoun (like tu for 'you') because the verb ending already tells us who is doing the action. Devi specifically means 'you have to', so adding tu is not necessary unless you want to emphasize it.

How is the word alla formed?

Alla is a combination of the preposition a (to) and the feminine singular word for 'the', which is la. Because we are saying 'to the station', a and la combine into one word: alla.

The word stazione ends in -e. How can I tell if it is masculine or feminine?

Nouns ending in -e can be either masculine or feminine. We can tell stazione is feminine in this sentence because of the word right before it: alla. Since alla contains the feminine 'the' (la), stazione must be a feminine word. Hint: most Italian words ending in -zione are feminine!