Morire ("to die") is one of those verbs that learners tend to memorize as a special case rather than try to derive — and that's the right move. It's doubly irregular: it inherits the o → uo stem shift of the broader closed class (puoi, vuoi, muori), and on top of that it shows an idiosyncratic -io / -iono ending in the 1sg and 3pl forms (muoio, muoiono) that you won't find on most other Italian verbs.
The verb is high-frequency for two reasons: the literal meaning is unfortunately useful, and Italian uses morire heavily in figurative idioms — "morire di fame" (be starving), "morire dal ridere" (die laughing), "morire dalla voglia di" (be dying to). Master the conjugation and you've unlocked one of the most expressive verbs in the language.
The conjugation
| Person | Conjugation | Stress |
|---|---|---|
| io | muoio | muòio |
| tu | muori | muòri |
| lui / lei / Lei | muore | muòre |
| noi | moriamo | moriàmo |
| voi | morite | morìte |
| loro | muoiono | muòiono |
Muoio di sete, c'è qualcosa da bere?
I'm dying of thirst — is there something to drink?
Se non mangi, muori.
If you don't eat, you die.
Mio nonno è anziano, ma non muore mai!
My grandfather is old, but he never dies! (affectionate hyperbole)
Moriamo tutti, prima o poi.
We all die, sooner or later.
Morite dal caldo lì dentro?
Are you guys dying of heat in there?
Le piante muoiono se non le innaffi.
The plants die if you don't water them.
The two irregularities, separated
Look at the paradigm with the irregularities highlighted, and you can see two distinct things going on:
Irregularity 1: o → uo. This is the stem shift that morire shares with potere, volere, cuocere, and the rest of that closed class. Wherever the stress lands on the stem (io, tu, lui/lei, loro), the o becomes uo. Wherever the stress moves to the ending (noi, voi), the o stays as o.
Irregularity 2: -io and -iono endings. The 1sg and 3pl forms aren't the regular -ire endings (-o and -ono). They have an extra -i- inserted: muoio (not muoro), muoiono (not muorono). This pattern reflects the underlying Latin form morior (a deponent verb whose -io ending was the regular 1sg), preserved here long after the -io ending was lost from most other Italian verbs. In modern Italian morire stands essentially alone in showing this -io / -iono pattern in the present indicative.
Auxiliary: essere
Morire is a verb of change of state — the prototypical case for taking essere as its auxiliary in compound tenses. The past participle therefore agrees in gender and number with the subject.
Mio nonno è morto l'anno scorso.
My grandfather died last year.
Mia nonna è morta serena, nel sonno.
My grandmother died peacefully, in her sleep.
I miei bisnonni sono morti durante la guerra.
My great-grandparents died during the war.
Le piante che mi avevi regalato sono morte tutte.
The plants you gave me have all died.
The participle morto is itself irregular — not the predictable moruto. We'll come back to this below.
The past participle: morto
The past participle of morire is morto / morta / morti / morte — completely irregular. There's no way to derive it from the infinitive: you simply have to know it.
| Form | Use |
|---|---|
| morto | masculine singular |
| morta | feminine singular |
| morti | masculine plural / mixed |
| morte | feminine plural |
The same form morto also functions as an adjective ("dead") and as a noun ("a dead person"), which is why you'll see it everywhere — on signs, in news, in everyday speech.
Il pesce nell'acquario è morto.
The fish in the aquarium is dead.
C'è un gatto morto in mezzo alla strada.
There's a dead cat in the middle of the road.
Hanno trovato il corpo di un morto sulla spiaggia.
They found the body of a dead man on the beach.
The noun i morti also names All Souls' Day (November 2): il giorno dei morti or la commemorazione dei defunti.
The high-value idioms
Italian leans heavily on morire for hyperbolic expressions of strong feeling. These are not literary flourishes — Italians use them constantly in everyday speech, especially with friends and family. Get them wrong and you sound textbook; get them right and you sound native.
Morire di + noun (be desperate from / dying of)
The most productive pattern. Morire combines with di + noun to mean "to be overwhelmed by" some feeling or state. Almost always figurative in modern speech — only morire di malattia ("to die of an illness") tends to be literal.
Muoio di fame, andiamo a mangiare qualcosa.
I'm starving, let's go grab something to eat.
Muoio di sonno, vado a letto.
I'm dead tired, I'm going to bed.
Muoio di freddo qui dentro, non c'è il riscaldamento?
I'm freezing in here — isn't there heat?
Muoio di noia in queste riunioni.
I'm bored to death in these meetings.
Muoio di curiosità — dimmi com'è andata!
I'm dying of curiosity — tell me how it went!
Morire dal / dalle + noun (die from + intensifier)
A close variant uses dal or dalle instead of di. The semantic difference is subtle but real: dal points at the cause as a more concrete trigger ("die from laughing right now"), while di suggests an enduring state. In practice they overlap heavily, and natives use both.
Sto morendo dal ridere, basta!
I'm dying laughing, stop!
Quel film fa morire dalle risate.
That film makes you die laughing.
Sono morta dalla vergogna quando l'ho visto.
I died of embarrassment when I saw him.
Morire dalla voglia di + infinitive (be dying to)
The Italian equivalent of English "I'm dying to _." Used with a following infinitive.
Muoio dalla voglia di vederti.
I'm dying to see you.
Muoio dalla voglia di un gelato.
I'm dying for an ice cream.
Mio figlio muore dalla voglia di andare al mare.
My son is dying to go to the sea.
Far morire (kill someone — figuratively)
Morire combines with fare in the causative construction to mean "to kill" in the figurative sense — make someone die laughing, of boredom, of jealousy.
Mi fai morire dal ridere ogni volta.
You make me die laughing every time.
Quella canzone mi fa morire.
That song slays me. (I love it; it's amazing)
In casual speech, mi fa morire can also mean "I love it / it's hilarious / it kills me" — pure exclamation, with the literal meaning bleached away.
Other tenses worth knowing
Once you know the presente, the rest of morire is easier than you'd expect. The other tenses build on either the regular mor- stem (most cases) or the irregular morir- / mort- stems (a few cases).
| Tense | 1sg form | Notes |
|---|---|---|
| imperfetto | morivo | regular |
| passato remoto | morii / morì | regular -ire pattern; 3sg morì |
| futuro semplice | morirò / morrò | both forms accepted; morirò is the standard modern form |
| condizionale | morirei / morrei | same dual forms as the futuro |
| congiuntivo presente | muoia | built on the irregular stem: muoia, muoia, muoia, moriamo, moriate, muoiano |
| participio passato | morto | irregular |
| gerundio | morendo | regular |
The futuro and condizionale forms morrò, morrei are older / more literary. In modern everyday Italian you'll hear morirò, morirei, and dictionaries list these as the standard.
Senza acqua nel deserto morirei in pochi giorni.
Without water in the desert I would die in a few days.
Spero che il mio gatto non muoia presto.
I hope my cat doesn't die soon.
Common mistakes
❌ Io moro di fame.
Incorrect — the io form takes the irregular -io ending: muoio, not moro.
✅ Io muoio di fame.
Correct — muoio is the irregular 1sg form.
❌ Loro morono giovani.
Incorrect — the loro form is muoiono, with both the uo shift and the -iono ending.
✅ Loro muoiono giovani.
Correct — muoiono with the irregular -iono ending.
❌ Mio nonno ha morto l'anno scorso.
Incorrect — morire takes essere as auxiliary, not avere.
✅ Mio nonno è morto l'anno scorso.
Correct — è morto, with essere agreement.
❌ Mia nonna è moruto serena.
Incorrect — morta with feminine agreement, and the participle is morto/-a, not moruto.
✅ Mia nonna è morta serena.
Correct — morta agrees with the feminine subject.
❌ Muoiamo di fame.
Incorrect — the noi form is unstressed on the stem, so it stays as moriamo, not muoiamo.
✅ Moriamo di fame.
Correct — moriamo, with plain o, because the stress is on the ending.
❌ Sto morrendo dal ridere.
Incorrect — the gerund is morendo, not morrendo. The double-r is from the older futuro forms (morrò), not from the gerund.
✅ Sto morendo dal ridere.
Correct — morendo is the regular gerund.
Key takeaways
Morire packs three irregularities into one verb: the o → uo stem shift (muoio, muori, muore, muoiono — but moriamo, morite), the idiosyncratic -io / -iono endings in 1sg and 3pl, and the irregular past participle morto. None of these can be derived from the infinitive — you have to memorize them.
What you get for that effort is one of the most expressive verbs in the language. Once you have the conjugation, the idioms come for free: muoio di fame (I'm starving), muoio di sonno (I'm exhausted), muoio dalla voglia di (I'm dying to), mi fa morire dal ridere (it makes me die laughing). These are everywhere in spoken Italian, and using them naturally is one of the fastest ways to sound less textbook and more native.
For the broader pattern that morire belongs to, see the o → uo stem change. For other verbs that pattern with morire in taking essere because of change-of-state semantics, see the auxiliary overview.
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Open the Italian course →Related Topics
- Presente Indicativo: OverviewA1 — How Italian's most-used tense covers everything English splits between simple present and present progressive — and why 'sto facendo' is not the default.
- The o → uo Stem ChangeA2 — Why posso, puoi, può alternate within the same paradigm — the stress-conditioned diphthongization that runs through Italian's irregular verbs.
- Presente: Regular -ire Verbs (Pure Subgroup)A1 — How to conjugate the 'pure' subgroup of -ire verbs in the present indicative — a small but high-frequency closed list of verbs that follow the basic -ire endings without the -isco infix.
- Presente: Venire (to come)A1 — How to conjugate venire and how Italian's deictic logic of motion differs from English — when to come, when to go, and the surprising passive use of venire.
- Auxiliary Verbs: avere, essere, stareA2 — The three auxiliary verbs that build Italian's compound tenses, the progressive, and the imminent future — and why getting them right is foundational.
- Regular vs Irregular VerbsA1 — What it means for an Italian verb to be regular, where irregularities tend to cluster, and the main families of irregular forms you will meet.