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An old, rusted bicycle with peeling blue paint and a flat tire leaning against a weathered stone wall.

deteriorar Present Subjunctive Conjugation

deteriorarto deteriorate

B2regular -ar★★★
Quick answer:

Use present subjunctive forms like 'deteriore' or 'deterioren' after expressions of doubt, desire, emotion, or uncertainty.

deteriorar Present Subjunctive Forms

yodeteriore
deteriores
él/ella/usteddeteriore
nosotrosdeterioremos
vosotrosdeterioréis
ellos/ellas/ustedesdeterioren

When to Use the Present Subjunctive

This tense pops up after phrases like 'Espero que...' (I hope that...), 'Dudo que...' (I doubt that...), or 'Quiero que...' (I want that...). It expresses uncertainty or a subjective reaction to something. For example, 'Espero que el coche no se deteriore pronto' (I hope the car doesn't deteriorate soon).

Notes on deteriorar in the Present Subjunctive

Deteriorar is regular in the present subjunctive. It follows the standard pattern for -ar verbs.

Example Sentences

  • Espero que el clima no se deteriore durante las vacaciones.

    I hope the weather doesn't deteriorate during the holidays.

    él/ella/usted

  • Dudo que las condiciones mejoren si el gobierno no interviene.

    I doubt the conditions will improve if the government doesn't intervene.

    él/ella/usted

  • Quiero que deterioremos el papel viejo para hacer nuevo.

    I want us to deteriorate the old paper to make new.

    nosotros

  • Me sorprende que los edificios no se deterioren más rápido.

    It surprises me that the buildings don't deteriorate faster.

    ellos/ellas/ustedes

Common Mistakes

  • Mistake: Using the indicative instead of the subjunctive.

    Correct: After expressions of doubt, desire, or emotion, use the subjunctive: 'Dudo que deteriore', not 'Dudo que deteriora'.

    Why: These trigger phrases require the subjunctive mood to express uncertainty or subjectivity.

  • Mistake: Using the infinitive for the 'nosotros' form.

    Correct: The 'nosotros' form is 'deterioremos', not 'deteriorar'.

    Why: The 'nosotros' form needs to be conjugated correctly for the present subjunctive.

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