Time Clauses

In brief

Time clauses tell you when something happens. In Italian, quando means ‘when’, mentre means ‘while’, and appena means ‘as soon as’. These words connect the timing of one action to another. Choose the verb tense according to whether you are describing a habit, a past event, or something still to come.

Form

Time word (quando, mentre, appena) + conjugated verb, followed or preceded by the main clause.

Usage

• Use quando for a point in time or a recurring situation: Quando torno a casa, ceno.
• Use mentre for simultaneous actions; for an ongoing past action interrupted by an event, use the imperfetto in the mentre clause.
• Use appena when the second action follows immediately. For future events, Italian can use the present or future tense after quando or appena.

Examples

• Quando finisco il lavoro, ti chiamo. — When I finish work, I’ll call you.
• Quando finirò il lavoro, ti chiamerò. — When I finish work, I’ll call you.
• Mentre preparavo la cena, è arrivato Marco. — While I was making dinner, Marco arrived.
• Appena arriviamo a casa, ti mandiamo un messaggio. — As soon as we get home, we’ll send you a message.

Common mistake

❌ Mentre cucino, il telefono ha squillato.

✅ Mentre cucinavo, il telefono ha squillato.

For an action already in progress when a past event occurred, use the imperfetto (cucinavo) in the while clause, not the present (cucino).

Remember

Unlike English, Italian can use the future tense in a future-time clause with quando. The present tense is also possible there.