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Portuguese Phrase

Quando devo ligar pro 911?

/ˈkwɐ̃.du ˈde.vo liˈgaʁ pɾu ˈnaɪn ˈwʌn ˈwʌn/
Meaning"When should I call 911?"
💡

Meaning

The speaker is asking for guidance on the appropriate moments to call the emergency number 911. It implies uncertainty about what situations truly warrant an emergency response.

🎯

When to use

Use this question when you are in a Portuguese‑speaking community (e.g., Brazil, Portugal, or a diaspora) but you are in a country that uses 911, and you need clarification about when it is justified to call for help.

✦Grammar Breakdown

Quandodevoligarpro911?

1

Quando

Interrogative adverb meaning 'when', used to ask about time.

2

devo

First‑person singular of the verb *dever* (to have to/should).

3

ligar

Infinitive verb meaning 'to call' (by phone).

4

pro

Colloquial contraction of *para o* (for the), common in spoken Brazilian Portuguese.

5

911

The emergency telephone number used in the United States and Canada.

🗨In Conversation

A

Quando devo ligar pro 911?

When should I call 911?

Só em casos de risco imediato à vida, como incêndios, acidentes graves ou crimes em andamento.

Only in cases of immediate danger to life, like fires, serious accidents, or crimes in progress.

B

✕Common Mistakes

  • Quando devo ligar para o 911?

    While grammatically correct, native speakers usually shorten it to *pro 911* in casual conversation.

  • Quando devo chamar o 911?

    The verb *chamar* is acceptable, but *ligar* is the most common verb for phone calls in Brazil.

  • Quando devo ligar ao 911?

    The preposition *ao* (a + o) is not used before numbers; use *para o* or its contraction *pro*.

↔Alternatives

  • Em que situações devo ligar para o 911?

    In which situations should I call 911?

  • Quando é apropriado usar o 911?

    When is it appropriate to use 911?

  • Devo chamar o 911 em caso de emergência?

    Should I call 911 in an emergency?

pt

Cultural Tip

In Brazil the official emergency number is 190 (police), 192 (ambulance) and 193 (fire). If you are traveling in the United States, remember that 911 is the universal emergency line, but misuse can lead to penalties. Also, the informal contraction *pro* is typical in casual speech; in formal contexts you would say *para o*.