Expressing Obligations

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Expressing Obligations in Italian

In A2 Italian, talking about rules, duties, and necessities is essential for navigating society. We use the modal verb dovere (to have to / must) and impersonal expressions like bisogna and si deve.

1. The Verb 'Dovere'

Use dovere when a specific person has an obligation. Conjugation in the present tense:

  • io devo (I must)
  • tu devi (You must)
  • lui/lei deve (He/She must)
  • noi dobbiamo (We must)
  • voi dovete (You all must)
  • loro devono (They must)

Example: Devo studiare per l'esame. (I have to study for the exam.)

2. Impersonal Expressions

When stating a general rule that applies to everyone, use impersonal structures which take the third-person singular:

  • Bisogna + infinitive: It is necessary to... (Very common for general rules)
  • Si deve + infinitive: One must / You should...

Example: Bisogna pagare il biglietto. (It is necessary to buy a ticket.)

Common Mistakes

Don't confuse personal and impersonal! Don't say *'bisogni'*. 'Bisogna' never changes its ending when followed by a verb.

Words

dovere
to have to / must
Devo andare a casa.I have to go home.
bisogna
it is necessary
Bisogna rispettare le regole.It is necessary to respect the rules.
si deve
one must / you should
Qui si deve fare silenzio.Here one must be silent.
pagare
to pay
Devi pagare il conto.You have to pay the bill.
rispettare
to respect
Bisogna rispettare l'ambiente.It is necessary to respect the environment.
il permesso
the permit
Serve un permesso speciale.A special permit is needed.
la regola
the rule
Questa è una regola importante.This is an important rule.
il biglietto
the ticket
Dobbiamo comprare il biglietto.We have to buy the ticket.
vietato
forbidden
È vietato fumare qui.Smoking is forbidden here.
la legge
the law
Tutti devono rispettare la legge.Everyone must respect the law.

Lessons are prepared with the help of AI.

Patterns

Devo ___

Expressing personal obligation: I have to do something.

Devo partire domani.I have to leave tomorrow.

Bisogna ___

Expressing general necessity: It is necessary to do something.

Bisogna arrivare in orario.It is necessary to arrive on time.

Si deve ___

Stating what one must do in a general situation.

Si deve lavorare sodo.One must work hard.