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A drop of dark blue liquid falling into a glass of clear water, causing the color to spread and fade.

diluir Imperfect Subjunctive Conjugation

diluir — to dilute

B1irregular (adds a 'y') -ir★★★
Quick answer:

The imperfect subjunctive is based on the preterite 'ellos' form: diluyera, diluyeras, diluyera, diluyéramos, diluyerais, diluyeran.

diluir Imperfect Subjunctive Forms

yodiluyera
túdiluyeras
él/ella/usteddiluyera
nosotrosdiluyéramos
vosotrosdiluyerais
ellos/ellas/ustedesdiluyeran

When to Use the Imperfect Subjunctive

Use this for hypotheticals (if I diluted...), past requests, or after verbs of emotion in the past.

Notes on diluir in the Imperfect Subjunctive

Because the preterite 'ellos' form is 'diluyeron', the imperfect subjunctive stem is 'diluyer-'. All forms include the 'y'.

Example Sentences

  • Si diluyeras el alcohol, no sería tan fuerte.

    If you diluted the alcohol, it wouldn't be so strong.

    tú

  • Me pidió que diluyera la noticia poco a poco.

    He asked me to break (dilute) the news little by little.

    yo

  • Ojalá se diluyeran los problemas pronto.

    I wish the problems would fade away soon.

    ellos/ellas/ustedes

Common Mistakes

  • Mistake: diluiera

    Correct: diluyera

    Why: The stem must match the preterite 'ellos' form, which uses a 'y' instead of an 'i'.

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Related Tenses

Present

yo: diluyo

The present tense of diluir is irregular, adding a 'y' before the endings in all forms except nosotros and vosotros.

Preterite

yo: diluí

In the preterite, diluir is irregular in the third person (él/ellos), changing 'i' to 'y'.

Imperfect

yo: diluía

The imperfect of diluir is regular: diluía, diluías, diluía, diluíamos, diluíais, diluían.

Future

yo: diluiré

The future tense of diluir is regular: diluiré, diluirás, diluirá, diluiremos, diluiréis, diluirán.

Conditional

yo: diluiría

The conditional of diluir is regular: diluiría, diluirías, diluiría, diluiríamos, diluiríais, diluirían.

Present Subjunctive

yo: diluya

The present subjunctive of diluir keeps the 'y' from the 'yo' form: diluya, diluyas, diluya, diluyamos, diluyáis, diluyan.

Affirmative Imperative

yo: diluye

Use the imperative to give orders: diluye (tú), diluya (usted), diluyamos (nosotros), diluid (vosotros), diluyan (ustedes).

Negative Imperative

yo: no diluyas

The negative imperative uses the present subjunctive: no diluyas, no diluya, no diluyamos, no diluyáis, no diluyan.