How to use “Mettersi a”: Italian Grammar Lesson

An interactive lesson guiding you from key takeaways to expert insights. Comes with Q&A, useful vocabulary, interactive audio, quizzes and games.

Mi metto a scrivere una lettera.
Mi metto a scrivere una lettera.
Mi metto a scrivere una lettera.
Published Aug 20, 2021
Updated Sep 21, 2025
Reviewed by
Italian language tutor, course author. MEng, MBA. Member of the International Association of Hyperpolyglots (HYPIA). After learning 12 languages, I can tell you that we all master languages by listening and mimicking. I couldn’t find an app to recommend to my students, so I made my own one. With my method, you’ll be speaking Italian from Lesson 1.
Written by
A linguist specializing in psycholinguistics and Italian language education. I hold a Research Master’s in Linguistics and teach Italian, passionately connecting research with practical teaching.

Key Takeaways

  • Mettersi a expresses the idea of starting an action, often with a sense of spontaneity.
  • This construction uses a reflexive verb mettersi followed by the preposition a and a present infinitive verb.
  • Regardless of the tense, mettersi is always followed by a present infinitive verb, such as studiare.
  • Common expressions include mettersi a piovere (to start raining) and mettersi a dieta (to start a diet).
  • Conjugation varies by tense; for example, in the present tense, it's mi metto for "I start."

Audio images

🔊
Mi metto a scrivere una lettera.
🔊
Paolo si è messo a scrivere una lettera.
🔊
Si è messa a studiare per l'esame finale.

Audio lesson with 30 sentences to listen and repeat

Italian grammar video lesson

Main Article

“Mettersi a” in Italian

“Mettersi a” Meaning

Mettersi a is an Italian construction used to express the idea of starting or beginning an action, often with a sense of spontaneity or casualness.

Linguistically speaking, it is composed of:

  • Mettersi: a reflexive verb, meaning it requires a reflexive pronoun. The fact that it makes use of a reflexive verb shows that the action is being done by and directed back toward the subject
  • A: this preposition follows mettersi and connects it to a present infinitive verb, indicating what action the subject is beginning.

This structure gives a sense of starting something spontaneously or without much planning, which differs from the straightforward iniziare a or cominciare a (both meaning “to begin”, “to start).

How to use “Mettersi a” in Italian

In Italian, mettersi a is used flexibly across various verb tenses. However, no matter the tense mettersi is conjugated in, it is always followed by a present infinitive verb.

For instance:

Fra poco mi metto a studiare.

In a bit I’ll start studying.

Mi sono messo a studiare alle 3.

I started studyingat 3.

Mi metterò a studiare dopo.

I will start studying later.

In all cases, studiare is kept in the infinitive form.

“Mettersi” Conjugation

Here I will conjugate mettersi in different main indicative tenses:

Present Tense

Subject Pronoun Conjugation
io mi metto
tu ti metti
lui/lei/Lei si mette
noi ci mettiamo
voi vi mettete
loro si mettono

Present Perfect

Subject Pronoun Conjugation
io mi sono messo/a
tu ti sei messo/a
lui/lei/Lei si è messo/a
noi ci siamo messi/e
voi vi siete messi/e
loro si sono messi/e

Notice that the auxiliary verb is essere given the fact that mettersi is a reflexive verb, and as a consequence, the past participle changes depending on gender and number of the subject.

Imperfect

Subject Pronoun Conjugation
io mi mettevo
tu ti mettevi
lui/lei/Lei si metteva
noi ci mettevamo
voi vi mettevate
loro si mettevano

Future Simple

Subject Pronoun Conjugation
io mi metterò
tu ti metterai
lui/lei/Lei si metterà
noi ci metteremo
voi vi metterete
loro si metteranno

Common Expressions With “Mettersi a”

Mettersi a is often used in common expressions to convey actions that begin suddenly, as well as figurative expressions that are frequently used in Italian.

  • Mettersi a piovere – to start raining

Siamo usciti, e subito si è messo a piovere.

We went out, and it immediately started to rain.

  • Mettersi a dieta – to start a diet

Dopo le feste, mi sono messo a dieta.

After the holidays, I started a diet.

  • Mettersi a lavorare – to start working

Adesso basta scherzare, mettiamoci a lavorare.

Enough joking around, let’s start working.

  • Mettersi a ridere – to start laughing

Appena ha sentito la battuta, si è messo a ridere.

As soon as he heard the joke, he started laughing.

Key Terms and Concepts

Words

iniziareto start
riflessivoreflexive
presentepresent
futurofuture
passatopast
prossimonext
verboverb
infinitivoinfinitive
colloquialecolloquial
espressioneexpression

Phrases

mettersi a studiareto start studying
mettersi a correreto start running
mettersi a cucinareto start cooking
mettersi a lavorareto start working
mettersi a leggereto start reading
mettersi a dormireto start sleeping
mettersi a parlareto start talking
mettersi a cantareto start singing
mettersi a ridereto start laughing
mettersi a piangereto start crying

Sentences

Mi metto a studiare ogni sera dopo cena.

I start studying every evening after dinner.

Domani si metteranno a lavorare al nuovo progetto.

Tomorrow they will start working on the new project.

Luca si è messo a ridere quando ha sentito quella barzelletta.

Luca started laughing when he heard that joke.

Appena è uscito il sole, ci siamo messi a fare una passeggiata.

As soon as the sun came out, we started going for a walk.

Mi metterò a cucinare appena torno a casa.

I will start cooking as soon as I get home.

FAQs

What does "mettersi a" mean in Italian?

It means to start doing something.

How to form "mettersi a "?

"Mettersi a" in all verb tenses followed by a verb in the infinitive mood.

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