Vocab Bloom Hub

how fast

/haʊ fɑːst/

Tradução: Frase interrogativa usada para perguntar a velocidade, a rapidez de um movimento ou o ritmo de mudanças. É formada pelo advérbio 'how' e pelo adjetivo 'fast'; quando usada com substantivos como 'speed' ou 'rate', funciona como locução determinativa complexa.

1 verbete

determiner

/haʊ fɑːst/A1formal
  • ptFrase interrogativa usada para perguntar a velocidade, a rapidez de um movimento ou o ritmo de mudanças. É formada pelo advérbio 'how' e pelo adjetivo 'fast'; quando usada com substantivos como 'speed' ou 'rate', funciona como locução determinativa complexa.

An interrogative phrase used to ask about speed, velocity, or rate of movement/change. Note: 'How fast' is primarily an interrogative adverbial phrase consisting of 'how' + the adjective 'fast'. When used before nouns like 'speed', 'rate', or 'pace', it functions as a complex determiner phrase modifying those nouns. This entry focuses on its determiner-like usage with nominal complements.

  1. Interrogative determiner (physical speed)A1formal

    Used before nouns denoting motion or velocity (e.g., 'speed', 'pace', 'rate') to ask about measurable physical speed of movement.

    ptDeterminante interrogativo (velocidade física)

    • How fast a speed can this car reach?
    • How fast a pace are you planning to run?
    • How fast a rate does the river flow?
  2. Interrogative determiner (rate of change/progress)B1formalbusiness

    Used before abstract nouns to ask about the rate, tempo, or rapidity of a process, change, or development.

    ptDeterminante interrogativo (taxa de mudança/progresso)

    • How fast a growth rate is sustainable?
    • How fast a change can the system handle?
    • How fast a progress have we achieved?
  3. Adverbial usage (standalone speed inquiry)A1informal

    Used without a following noun to ask about speed directly. The noun is implied by context. (Note: This is the most common adverbial usage, included for completeness).

    ptUso adverbial (pergunta direta sobre velocidade)

    • How fast can you type?
    • How fast does the train go?
    • How fast did you finish the race?
  4. Indirect question usageB1formal

    Used to introduce a noun clause that reports a question about speed, functioning as the object of verbs like 'know', 'ask', 'wonder'.

    ptUso em pergunta indireta

    • I wonder how fast he can run.
    • Do you know how fast the download will be?
    • Tell me how fast you need this done.
  5. Exclamatory or emphatic useB2informal

    Used in exclamations or rhetorical questions to emphasize the surprising extent of speed, rapidity, or urgency.

    ptUso exclamativo ou enfático

    • How fast a time you ran that mile!
    • How fast do you expect me to work?
    • How fast the world is changing!