Sedersi Conjugation in Italian

sedersi means “to sit down” in English, and it is one of the first verbs Italian learners meet — it sits at number 766 in VerbFlow’s frequency list for Italian verbs. It is the reflexive verb for sitting down, and it is irregular in the present, where the stem changes to sied- in the singular and third-person plural: io siedo, loro siedono. Every form carries a reflexive pronoun, and the passato prossimo is formed with essere, as it is for all reflexive verbs. This page gives you the complete conjugation of sedersi — 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 siedo sulla sedia ogni giorno.” — “I sit down on the chair.”

Quick facts

  • Infinitive: sedersi
  • English: to sit down
  • Verb type: Irregular -ere verb
  • Irregular in: present, passato-remoto, future, conditional, future-perfect, conditional-perfect, present-subjunctive, imperative-affirmative, imperative-negative
  • Gerund: sedendosi
  • Present participle: sedente
  • Past participle: seduto
  • Auxiliary: essere (all perfect tenses are formed with essere + the past participle)
  • Ending: -ere verbs; pattern ere in the verified tables

Pronunciation

Pronunciation is not listed on this page: the verified tables do not include IPA for sedersi, 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 sedersi in every tense, you can recognise it in speech even before you can pronounce every form perfectly.

Three things to remember about sedersi

  1. It is irregular in 9 tense(s): present, passato-remoto, future, conditional, future-perfect, conditional-perfect, present-subjunctive, imperative-affirmative, imperative-negative. Learn those forms as a set instead of guessing them from the infinitive, because the stem changes in ways no rule predicts. Its present has the stem change siedo/siedono, and its passato remoto uses the sedetti forms.
  2. The perfect tenses use essere: the passato prossimo is formed with essere in the present plus the past participle seduto. 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 sedersi 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 sedente and seduto: 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 sedersi. 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 siedo
tu ti siedi
lui/lei si siede
noi ci sediamo
voi vi sedete
loro si siedono

The present indicative is used for habits, facts and things happening now. For example: “Io mi siedo sulla sedia ogni giorno.” — “I sit down on the chair”

Passato remoto

Person Form
io mi sedetti
tu ti sedesti
lui/lei si sedette
noi ci sedemmo
voi vi sedeste
loro si sedettero

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 sedetti sulla sedia ieri.” — “I sat down on the chair”

Imperfect (imperfetto)

Person Form
io mi sedevo
tu ti sedevi
lui/lei si sedeva
noi ci sedevamo
voi vi sedevate
loro si sedevano

The imperfect is used for ongoing or habitual actions in the past, and for background description. For example: “Io mi sedevo sulla sedia una volta.” — “I used to sit down on the chair”

Future (futuro semplice)

Person Form
io mi siederò
tu ti siederai
lui/lei si siederà
noi ci siederemo
voi vi siederete
loro si siederanno

The future is used for what will happen, for predictions and for probability. For example: “Io mi siederò sulla sedia domani.” — “I will sit down on the chair”

Conditional (condizionale)

Person Form
io mi siederei
tu ti siederesti
lui/lei si siederebbe
noi ci siederemmo
voi vi siedereste
loro si siederebbero

The conditional is used for what would happen, for polite requests and for hypothetical situations. For example: “Io mi siederei sulla sedia un giorno.” — “I would sit down on the chair”

Present perfect (passato prossimo)

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

The passato prossimo is used for completed actions in the past, especially in spoken Italian. For example: “Lui si è seduto sulla sedia questa settimana.” — “He has sat down on the chair”

Pluperfect (trapassato prossimo)

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

The pluperfect is used for an action completed before another past action. For example: “Io mi ero seduto sulla sedia prima della festa.” — “I had sat down on the chair”

Future perfect (futuro anteriore)

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

The future perfect is used for what will have happened by a point in the future. For example: “Io mi sarò seduto sulla sedia per domani.” — “I will have sat down on the chair”

Conditional perfect (condizionale passato)

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

The conditional perfect is used for what would have happened in a different past. For example: “Io mi sarei seduto sulla sedia ieri.” — “I would have sat down on the chair”

Present subjunctive (congiuntivo presente)

Person Form
io mi sieda
tu ti sieda
lui/lei si sieda
noi ci sediamo
voi vi sediate
loro si siedano

The present subjunctive is used for wishes, doubts, emotions and opinions after che. For example: “È importante che io mi sieda sulla sedia.” — “It is important that I sit down on the chair”

Imperfect subjunctive (congiuntivo imperfetto)

Person Form
io mi sedessi
tu ti sedessi
lui/lei si sedesse
noi ci sedessimo
voi vi sedeste
loro si sedessero

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 sedessi sulla sedia.” — “It was important that I sit down on the chair”

Imperative (affirmative)

Person Form
tu siediti
lui/lei si sieda
noi sediamoci
voi sedetevi
loro si siedano

The affirmative imperative is used for direct commands and instructions. For example: “Siediti sulla sedia!” — “Sit down on the chair!”

Imperative (negative)

Person Form
tu non ti sedere
lui/lei non si sieda
noi non ci sediamo
voi non vi sediate
loro non si siedano

The negative imperative is used for prohibitions and negative commands. For example: “Non ti sedere sulla sedia.” — “Do not sit down on the chair.”

Gerund

Form Italian
Gerund sedendosi

The gerund is used for an action happening at the same time as another action, often with stare for the progressive. For example: “Sedendosi sulla sedia, imparo molto.” — “While sitting down on the chair, I learn a lot.”

Present participle

Form Italian
Present participle sedente

The present participle is used as an adjective, describing an ongoing action. For example, the participle sedente 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 seduto

The past participle is used with an auxiliary to form the perfect tenses, and as an adjective. For example: “Io mi sono seduto sulla sedia questa settimana.” — “I have sat down on the chair.”

Example sentences

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

  1. “Io mi siedo sulla sedia ogni giorno.” — “I sit down on the chair”
  2. “Tu ti sedesti sulla sedia ieri.” — “You sat down on the chair”
  3. “Lui si sedeva sulla sedia una volta.” — “He used to sit down on the chair”
  4. “Io mi siederò sulla sedia domani.” — “I will sit down on the chair”
  5. “Tu ti siederesti sulla sedia un giorno.” — “You would sit down on the chair”
  6. “Lui si è seduto sulla sedia questa settimana.” — “He has sat down on the chair”
  7. “Io mi ero seduto sulla sedia prima della festa.” — “I had sat down on the chair”
  8. “Tu ti sarai seduto sulla sedia per domani.” — “You will have sat down on the chair”
  9. “È importante che io mi sieda sulla sedia.” — “It is important that I sit down on the chair”
  10. “Siediti sulla sedia!” — “Sit down on the chair!”

Common mistakes

1. Using the infinitive instead of a conjugated form

✗ Wrong: “Io sedersi sulla sedia.”

✓ Right: “Io mi siedo sulla sedia ogni giorno.”

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

2. Using the wrong person’s form

✗ Wrong: “Io ti siedi sulla sedia.”

✓ Right: “Io mi siedo sulla sedia ogni giorno.”

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

3. Using the present for a finished past action

✗ Wrong: “Io mi siedo sulla sedia ieri.”

✓ Right: “Io mi sono seduto sulla sedia questa settimana.”

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

4. Using the wrong auxiliary in the passato prossimo

✗ Wrong: “Io ho seduto sulla sedia.”

✓ Right: “Io mi sono seduto sulla sedia questa settimana.”

The passato prossimo of sedersi is formed with essere plus the past participle seduto: the io form is mi sono seduto. 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 siedo sulla sedia.”

✓ Right: “È importante che io mi sieda sulla sedia.”

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

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

✗ Wrong: “Io sono sedendosi sulla sedia.”

✓ Right: “Io mi sono seduto sulla sedia questa settimana.”

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

Quiz: test yourself

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

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

    • A) ti siedi
    • B) mi siedo
    • C) si siede
    • D) ci sediamo
  2. What is the lui/lei form of sedersi in the Passato remoto?

    • A) mi sedetti
    • B) ti sedesti
    • C) si sedette
    • D) ci sedemmo
  3. What is the noi form of sedersi in the Imperfect?

    • A) mi sedevo
    • B) ti sedevi
    • C) si sedeva
    • D) ci sedevamo
  4. What is the tu form of sedersi in the Future?

    • A) ti siederai
    • B) mi siederò
    • C) si siederà
    • D) ci siederemo
  5. What is the io form of sedersi in the Conditional?

    • A) ti siederesti
    • B) mi siederei
    • C) si siederebbe
    • D) ci siederemmo
  6. What is the lui/lei form of sedersi in the Present perfect (passato prossimo)?

    • A) mi sono seduto
    • B) ti sei seduto
    • C) si è seduto
    • D) ci siamo seduto
  7. What is the lui/lei form of sedersi in the Present subjunctive?

    • A) mi sieda
    • B) ti sieda
    • C) ci sediamo
    • D) si sieda
  8. What is the io form of sedersi in the Imperfect subjunctive?

    • A) mi sedessi
    • B) ti sedessi
    • C) si sedesse
    • D) ci sedessimo
  9. What is the gerund of sedersi?

    • A) seduto
    • B) sedendosi
    • C) sedersi
    • D) mi siedo
  10. What does sedersi mean in English?

  • A) to get dressed
  • B) to call
  • C) to sit down
  • D) to look for

Answer key

  1. B) mi siedo — the correct form is mi siedo. The other options are other forms of the same verb.
  2. C) si sedette — the correct form is si sedette. The other options are other forms of the same verb.
  3. D) ci sedevamo — the correct form is ci sedevamo. The other options are other forms of the same verb.
  4. A) ti siederai — the correct form is ti siederai. The other options are other forms of the same verb.
  5. B) mi siederei — the correct form is mi siederei. The other options are other forms of the same verb.
  6. C) si è seduto — the correct form is si è seduto. The other options are other forms of the same verb.
  7. D) si sieda — the correct form is si sieda. The other options are other forms of the same verb.
  8. A) mi sedessi — the correct form is mi sedessi. The other options are other forms of the same verb.
  9. B) sedendosi — the correct form is sedendosi. The other options are other forms of the same verb.
  10. C) to sit down — the correct form is to sit down. The other options are other forms of the same verb.

Frequently asked questions

What does sedersi mean in English?

sedersi means “to sit down”. It is a core everyday verb, so its present-tense forms are worth learning first.

Is sedersi regular or irregular?

sedersi is irregular: it is irregular in present, passato-remoto, future, conditional, future-perfect, conditional-perfect, present-subjunctive, imperative-affirmative, imperative-negative. The gerund is sedendosi and the past participle is seduto.

What are the gerund and past participle of sedersi?

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

Which auxiliary does sedersi take in the passato prossimo?

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

How do I say “I sit down” in Italian?

Say “Io mi siedo sulla sedia ogni giorno.” — “I sit down on the chair” The io form of the present is mi siedo, and it is the form you will use most often.

Where does the reflexive pronoun go with sedersi?

Before the conjugated verb in most tenses — mi siedo 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 seduto.

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