Addormentarsi Conjugation in Italian

addormentarsi means “to fall asleep” in English, and it is one of the first verbs Italian learners meet — it sits at number 759 in VerbFlow’s frequency list for Italian verbs. It is the reflexive verb for falling asleep, and it is completely regular. Every form carries a reflexive pronoun, and the passato prossimo is formed with essere, as it is for all reflexive verbs. Its opposite is svegliarsi, to wake up. This page gives you the complete conjugation of addormentarsi — every tense, every person, the gerund and the past participle — with notes, examples, common mistakes and a quiz. Here is the verb in a natural sentence: “Io mi addormento ogni giorno.” — “I fall asleep.”

Quick facts

  • Infinitive: addormentarsi
  • English: to fall asleep
  • Verb type: Regular -are verb
  • Irregular in: none — regular in every tense
  • Gerund: addormentandosi
  • Present participle: addormentante
  • Past participle: addormentato
  • Auxiliary: essere (all perfect tenses are formed with essere + the past participle)
  • Ending: -are verbs; pattern are in the verified tables

Pronunciation

Pronunciation is not listed on this page: the verified tables do not include IPA for addormentarsi, so no pronunciation is given rather than an invented one. Learn the spelling of the forms first, and listen to a native speaker for the sounds rather than trusting an invented transcription. The forms below are the ones that matter: once you can read addormentarsi in every tense, you can recognise it in speech even before you can pronounce every form perfectly.

Three things to remember about addormentarsi

  1. It is regular: every form follows the ordinary -are pattern, so once you know the stem you can build the whole table. The only work is learning the endings, not memorising exceptions.
  2. The perfect tenses use essere: the passato prossimo is formed with essere in the present plus the past participle addormentato. The tables on this page give the participle in the masculine singular form, exactly as it appears in the verified dump; agreement with the subject is a separate step that depends on the sentence, not on the verb table. Because addormentarsi is reflexive, every form on this page carries its reflexive pronoun — mi, ti, si, ci, vi, si — and the passato prossimo is formed with essere. The engine gives the bare verb forms, so the pronouns here are the article layer that makes the forms usable in a sentence.
  3. The participles are addormentante and addormentato: keep both in mind as you read the tables, because the present participle appears as an adjective and the past participle appears in every perfect tense. If you know those two forms and the present tense, you already know the skeleton of the whole conjugation.

Full conjugation tables

Every form below comes from VerbFlow’s verified conjugation tables for addormentarsi. Learn the present tense first, then the passato prossimo and the imperfect, and add the remaining tenses one at a time.

Present indicative (presente)

Person Form
io mi addormento
tu ti addormenti
lui/lei si addormenta
noi ci addormentiamo
voi vi addormentate
loro si addormentano

The present indicative is used for habits, facts and things happening now. For example: “Io mi addormento ogni giorno.” — “I fall asleep”

Passato remoto

Person Form
io mi addormentai
tu ti addormentasti
lui/lei si addormentò
noi ci addormentammo
voi vi addormentaste
loro si addormentarono

The passato remoto is used for completed actions in the distant past, mostly in written and literary Italian and in the south of Italy. For example: “Io mi addormentai ieri.” — “I fell asleep”

Imperfect (imperfetto)

Person Form
io mi addormentavo
tu ti addormentavi
lui/lei si addormentava
noi ci addormentavamo
voi vi addormentavate
loro si addormentavano

The imperfect is used for ongoing or habitual actions in the past, and for background description. For example: “Io mi addormentavo una volta.” — “I used to fall asleep”

Future (futuro semplice)

Person Form
io mi addormenterò
tu ti addormenterai
lui/lei si addormenterà
noi ci addormenteremo
voi vi addormenterete
loro si addormenteranno

The future is used for what will happen, for predictions and for probability. For example: “Io mi addormenterò domani.” — “I will fall asleep”

Conditional (condizionale)

Person Form
io mi addormenterei
tu ti addormenteresti
lui/lei si addormenterebbe
noi ci addormenteremmo
voi vi addormentereste
loro si addormenterebbero

The conditional is used for what would happen, for polite requests and for hypothetical situations. For example: “Io mi addormenterei un giorno.” — “I would fall asleep”

Present perfect (passato prossimo)

Person Form
io mi sono addormentato
tu ti sei addormentato
lui/lei si è addormentato
noi ci siamo addormentato
voi vi siete addormentato
loro si sono addormentato

The passato prossimo is used for completed actions in the past, especially in spoken Italian. For example: “Lui si è addormentato questa settimana.” — “He has fallen asleep”

Pluperfect (trapassato prossimo)

Person Form
io mi ero addormentato
tu ti eri addormentato
lui/lei si era addormentato
noi ci eravamo addormentato
voi vi eravate addormentato
loro si erano addormentato

The pluperfect is used for an action completed before another past action. For example: “Io mi ero addormentato prima della festa.” — “I had fallen asleep”

Future perfect (futuro anteriore)

Person Form
io mi sarò addormentato
tu ti sarai addormentato
lui/lei si sarà addormentato
noi ci saremo addormentato
voi vi sarete addormentato
loro si saranno addormentato

The future perfect is used for what will have happened by a point in the future. For example: “Io mi sarò addormentato per domani.” — “I will have fallen asleep”

Conditional perfect (condizionale passato)

Person Form
io mi sarei addormentato
tu ti saresti addormentato
lui/lei si sarebbe addormentato
noi ci saremmo addormentato
voi vi sareste addormentato
loro si sarebbero addormentato

The conditional perfect is used for what would have happened in a different past. For example: “Io mi sarei addormentato ieri.” — “I would have fallen asleep”

Present subjunctive (congiuntivo presente)

Person Form
io mi addormenti
tu ti addormenti
lui/lei si addormenti
noi ci addormentiamo
voi vi addormentiate
loro si addormentino

The present subjunctive is used for wishes, doubts, emotions and opinions after che. For example: “È importante che io mi addormenti.” — “It is important that I fall asleep”

Imperfect subjunctive (congiuntivo imperfetto)

Person Form
io mi addormentassi
tu ti addormentassi
lui/lei si addormentasse
noi ci addormentassimo
voi vi addormentaste
loro si addormentassero

The imperfect subjunctive is used in the past for wishes and hypotheticals after che, and in if-clauses. For example: “Era importante che io mi addormentassi.” — “It was important that I fall asleep”

Imperative (affirmative)

Person Form
tu addormentati
lui/lei si addormenti
noi addormentiamoci
voi addormentatevi
loro si addormentino

The affirmative imperative is used for direct commands and instructions. For example: “Addormentati!” — “Fall asleep!”

Imperative (negative)

Person Form
tu non ti addormentare
lui/lei non si addormenti
noi non ci addormentiamo
voi non vi addormentiate
loro non si addormentino

The negative imperative is used for prohibitions and negative commands. For example: “Non ti addormentare.” — “Do not fall asleep.”

Gerund

Form Italian
Gerund addormentandosi

The gerund is used for an action happening at the same time as another action, often with stare for the progressive. For example: “Addormentandosi, imparo molto.” — “While falling asleep, I learn a lot.”

Present participle

Form Italian
Present participle addormentante

The present participle is used as an adjective, describing an ongoing action. For example, the participle addormentante is used to describe something that is happening at the same time as the main action, much like an English -ing adjective.

Past participle

Form Italian
Past participle addormentato

The past participle is used with an auxiliary to form the perfect tenses, and as an adjective. For example: “Io mi sono addormentato questa settimana.” — “I have fallen asleep.”

Example sentences

Ten natural sentences with addormentarsi, covering different tenses and persons. Say each one aloud, then cover the Italian and try to produce it from the English.

  1. “Io mi addormento ogni giorno.” — “I fall asleep”
  2. “Tu ti addormentasti ieri.” — “You fell asleep”
  3. “Lui si addormentava una volta.” — “He used to fall asleep”
  4. “Io mi addormenterò domani.” — “I will fall asleep”
  5. “Tu ti addormenteresti un giorno.” — “You would fall asleep”
  6. “Lui si è addormentato questa settimana.” — “He has fallen asleep”
  7. “Io mi ero addormentato prima della festa.” — “I had fallen asleep”
  8. “Tu ti sarai addormentato per domani.” — “You will have fallen asleep”
  9. “È importante che io mi addormenti.” — “It is important that I fall asleep”
  10. “Addormentati!” — “Fall asleep!”

Common mistakes

1. Using the infinitive instead of a conjugated form

✗ Wrong: “Io addormentarsi.”

✓ Right: “Io mi addormento ogni giorno.”

The infinitive addormentarsi never takes a subject. After io you need the conjugated present form mi addormento.

2. Using the wrong person’s form

✗ Wrong: “Io ti addormenti.”

✓ Right: “Io mi addormento ogni giorno.”

ti addormenti is the tu form, not the io form. Match the verb to the subject every time: io goes with mi addormento.

3. Using the present for a finished past action

✗ Wrong: “Io mi addormento ieri.”

✓ Right: “Io mi sono addormentato questa settimana.”

Yesterday points to the past, so the present is wrong here. Use the passato prossimo mi sono addormentato for a finished action yesterday.

4. Using the wrong auxiliary in the passato prossimo

✗ Wrong: “Io ho addormentato.”

✓ Right: “Io mi sono addormentato questa settimana.”

The passato prossimo of addormentarsi is formed with essere plus the past participle addormentato: the io form is mi sono addormentato. Check the auxiliary in the table above before you build a perfect tense.

5. Using the indicative after a subjunctive trigger

✗ Wrong: “È importante che io mi addormento.”

✓ Right: “È importante che io mi addormenti.”

After è importante che Italian needs the subjunctive, so use mi addormenti here, not the indicative mi addormento.

6. Using the gerund instead of the past participle in a perfect tense

✗ Wrong: “Io sono addormentandosi.”

✓ Right: “Io mi sono addormentato questa settimana.”

The perfect tenses need the past participle addormentato, not the gerund addormentandosi. The gerund belongs in progressive constructions, never after an auxiliary in a perfect tense.

Quiz: test yourself

Ten questions on addormentarsi. Choose the right form, then check the answer key below.

  1. What is the io form of addormentarsi in the Present indicative?

    • A) ti addormenti
    • B) mi addormento
    • C) si addormenta
    • D) ci addormentiamo

  2. What is the lui/lei form of addormentarsi in the Passato remoto?

    • A) mi addormentai
    • B) ti addormentasti
    • C) si addormentò
    • D) ci addormentammo

  3. What is the noi form of addormentarsi in the Imperfect?

    • A) mi addormentavo
    • B) ti addormentavi
    • C) si addormentava
    • D) ci addormentavamo

  4. What is the tu form of addormentarsi in the Future?

    • A) ti addormenterai
    • B) mi addormenterò
    • C) si addormenterà
    • D) ci addormenteremo

  5. What is the io form of addormentarsi in the Conditional?

    • A) ti addormenteresti
    • B) mi addormenterei
    • C) si addormenterebbe
    • D) ci addormenteremmo

  6. What is the lui/lei form of addormentarsi in the Present perfect (passato prossimo)?

    • A) mi sono addormentato
    • B) ti sei addormentato
    • C) si è addormentato
    • D) ci siamo addormentato

  7. What is the lui/lei form of addormentarsi in the Present subjunctive?

    • A) mi addormenti
    • B) ti addormenti
    • C) ci addormentiamo
    • D) si addormenti

  8. What is the io form of addormentarsi in the Imperfect subjunctive?

    • A) mi addormentassi
    • B) ti addormentassi
    • C) si addormentasse
    • D) ci addormentassimo

  9. What is the gerund of addormentarsi?

    • A) addormentato
    • B) addormentandosi
    • C) addormentarsi
    • D) mi addormento

  10. What does addormentarsi mean in English?

  • A) to explain
  • B) to answer
  • C) to fall asleep
  • D) to ask

Answer key

  1. B) mi addormento — the correct form is mi addormento. The other options are other forms of the same verb.
  2. C) si addormentò — the correct form is si addormentò. The other options are other forms of the same verb.
  3. D) ci addormentavamo — the correct form is ci addormentavamo. The other options are other forms of the same verb.
  4. A) ti addormenterai — the correct form is ti addormenterai. The other options are other forms of the same verb.
  5. B) mi addormenterei — the correct form is mi addormenterei. The other options are other forms of the same verb.
  6. C) si è addormentato — the correct form is si è addormentato. The other options are other forms of the same verb.
  7. D) si addormenti — the correct form is si addormenti. The other options are other forms of the same verb.
  8. A) mi addormentassi — the correct form is mi addormentassi. The other options are other forms of the same verb.
  9. B) addormentandosi — the correct form is addormentandosi. The other options are other forms of the same verb.
  10. C) to fall asleep — the correct form is to fall asleep. The other options are other forms of the same verb.

Frequently asked questions

What does addormentarsi mean in English?

addormentarsi means “to fall asleep”. It is a core everyday verb, so its present-tense forms are worth learning first.

Is addormentarsi regular or irregular?

addormentarsi is regular: it follows the ordinary -are pattern in every tense. The gerund is addormentandosi and the past participle is addormentato.

What are the gerund and past participle of addormentarsi?

The gerund is addormentandosi — use it with stare for the progressive. The past participle is addormentato — use it with essere for the perfect tenses, as in mi sono addormentato.

Which auxiliary does addormentarsi take in the passato prossimo?

addormentarsi takes essere in the passato prossimo: the io form is mi sono addormentato. All four perfect tenses on this page are built with essere plus the past participle addormentato.

How do I say “I fall asleep” in Italian?

Say “Io mi addormento ogni giorno.” — “I fall asleep” The io form of the present is mi addormento, and it is the form you will use most often.

Where does the reflexive pronoun go with addormentarsi?

Before the conjugated verb in most tenses — mi addormento for io — and attached to the end of the verb in the affirmative imperative and the gerund. In the passato prossimo the pronoun comes before the auxiliary: mi sono addormentato.

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