Italian Phrase
Sì, tutte le luci sono spente.
Meaning
The speaker confirms that every light in the room (or house) has been turned off. It is a complete, affirmative answer to a question about the state of the lights.
When to use
Use this sentence after checking a room, before leaving a house, or when someone asks if the lights are off. It works in both informal and semi‑formal contexts, such as at home, in an office, or when giving a quick status update.
✦Grammar Breakdown
Sìtuttelelucisonospente
Sì
Affirmative adverb meaning “yes”. It can stand alone or precede a clause.
tutte
Feminine plural form of “tutto”; used here as a quantifier meaning “all”. Must agree in gender and number with the noun it modifies.
le
Definite article for feminine plural nouns, equivalent to “the”.
luci
Feminine plural noun meaning “lights”.
sono
Third‑person plural of the verb “essere” (to be). Used as a linking verb with adjectives or past participles.
spente
Past participle of “spegnere” used as an adjective; it must agree in gender and number with “luci”, hence the feminine plural form.
🗨In Conversation
Hai spento le luci?
Did you turn off the lights?
Sì, tutte le luci sono spente.
Yes, all the lights are off.
✕Common Mistakes
Sì, tutti le luci sono spente.
“Tutti” is masculine; the noun “luci” is feminine, so the correct form is “tutte”.
Sì, tutte le luci sono spento.
The adjective must agree with the plural noun, so use “spente”, not the singular “spento”.
Sì, le luci sono spente.
Leaving out the quantifier “tutte” changes the nuance; it no longer emphasizes that *every* light is off.
Sì, tutte le luci sono spenti.
“Spenti” is masculine plural and does not match the feminine noun “luci”.
↔Alternatives
Sì, le luci sono tutte spente.
Yes, the lights are all off.
Sì, le luci sono spente.
Yes, the lights are off.
Tutte le luci sono spente.
All the lights are off.
Cultural Tip
In Italy, it’s common etiquette to switch off lights when leaving a room, both for energy savings and out of respect for shared spaces. The adjective “spente” can also describe a broken bulb, so context (e.g., a quick visual check) tells the listener whether the lights are simply off or need replacement.