A speaker can question whether a proposition is true.

The idea

After affirmative dudar que, put the verb of the proposition in the subjunctive and match its subject.

Examples

  • Dudo que Marta llegue a tiempo.I doubt Marta will arrive on time.
  • Dudamos que el tren salga hoy.We doubt the train will leave today.
  • Leo duda que tengamos suficiente agua.Leo doubts we have enough water.
  • Dudo que esa tienda abra los domingos.I doubt that shop opens on Sundays.
  • Mis vecinos dudan que llueva mañana.My neighbors doubt it will rain tomorrow.
  • La médica duda que el paciente necesite otra prueba.The doctor doubts the patient needs another test.

Read-aloud uses a synthetic Spanish voice available on your device. Voice quality and availability vary; it does not assess your pronunciation.

Watch out

Do not use the indicative merely because the event may happen. With no dudar que, the indicative normally expresses certainty.

Try it yourself

  1. Choose the subjunctive form. Dudo que Ana ___ el mapa. (encuentre / encuentra)

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    encuentre

    Encuentre agrees with Ana, the person who may find the map.

  2. Choose the subjunctive form. Dudamos que ustedes ___ la respuesta. (sepan / saben)

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    sepan

    Sepan matches the plural subject ustedes.

  3. Choose the subjunctive form. Elena duda que yo ___ temprano. (pueda / puedo)

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    pueda

    Pueda matches the subject yo, the person who may arrive early.

Use it today

Write a sentence about a plan you doubt will succeed.