calentar Imperfect Subjunctive Conjugation
calentar — to heat up
The imperfect subjunctive is regular based on the preterite: calentara, calentaras, calentara, calentáramos...
calentar Imperfect Subjunctive Forms
When to Use the Imperfect Subjunctive
Use this in 'if' clauses (If I warmed up...) or when you're talking about past requests/desires involving heating something.
Notes on calentar in the Imperfect Subjunctive
There is no stem change here because the preterite form (calentaron) doesn't have one.
Example Sentences
Si calentaras la comida, estaría más rica.
If you heated up the food, it would be tastier.
tú
Me pidió que calentara el agua.
He asked me to heat the water.
yo
Common Mistakes
Mistake: calientara
Correct: calentara
Why: Never use the 'ie' stem change in the imperfect subjunctive for this verb.
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Related Tenses
Present
yo: caliento
Calentar has a stem change (e to ie) in all forms except nosotros and vosotros: caliento, calientas, calienta, calientan.
Preterite
yo: calenté
Calentar is completely regular in the preterite: calenté, calentaste, calentó, calentamos, calentasteis, calentaron.
Imperfect
yo: calentaba
Calentar is regular in the imperfect, using the standard -aba endings: calentaba, calentabas, calentaba...
Future
yo: calentaré
The future of calentar is regular: add the endings -é, -ás, -á, -emos, -éis, -án to the full infinitive.
Conditional
yo: calentaría
The conditional of calentar is regular: calentar +ía, -ías, -ía, -íamos, -íais, -ían.
Present Subjunctive
yo: caliente
The present subjunctive follows the 'ie' stem change: caliente, calientes, caliente, calentemos, calentéis, calienten.
Affirmative Imperative
yo: calienta
The commands use the 'ie' stem change except for vosotros: calienta (tú), caliente (usted), calentad (vosotros).
Negative Imperative
yo: no calientes
Negative commands use the present subjunctive forms: no calientes, no caliente, no calentemos...