When you want to talk about something that happened in the past in Italian, you'll almost always use the passato prossimo. It's the workhorse for completed actions, whether you're describing what you did yesterday or an event from last year.

Think of it like saying "I have eaten" or "She has gone." The first part is the helper, or auxiliary verb, which is always the present tense of avere (to have) or essere (to be). The second part is the past participle, which carries the main action's meaning.

Forming the past participle for regular verbs is straightforward. You just swap out the infinitive ending.

So, how do you know whether to use avere or essere? The verb's meaning is the key. Most verbs use avere. These are typically transitive verbs—actions that can take a direct object. If you can ask "what?" or "whom?" after the verb, it probably uses avere.

• Ho mangiato una pizza. (I ate a pizza.) — Ate what? A pizza.
• Abbiamo visto un film. (We saw a film.) — Saw what? A film.

Essere is used for a more specific group of verbs. These often describe motion, a change of state, or simply a state of being. Think of verbs like andare (to go), venire (to come), nascere (to be born), morire (to die), diventare (to become), and stare (to stay/be). Reflexive verbs (like lavarsi, to wash oneself) also always use essere.

When you use essere, there's one crucial rule you must follow: the past participle has to agree in gender and number with the subject. It acts like an adjective. This does not happen with avere.

Let's see how it works with the verb andare (to go):

This might seem tricky at first, but it quickly becomes second nature. It’s a core feature of Italian grammar.

Just like in English, many of the most common Italian verbs have irregular past participles. There's no simple rule for these; they just have to be memorized. Luckily, you'll see them so often that they'll stick in your mind.

The irregular forms are often remnants of how verbs changed over time from Vulgar Latin into modern Italian.

To ground your sentences in time, you can use common expressions. These signal clearly that you're talking about a completed past event.

Let's review the main ideas before you test your knowledge.

Ready to try it out? See how well you've grasped the concepts.

Mastering the passato prossimo is a huge step. It unlocks your ability to share stories, talk about your experiences, and connect with people on a new level.