calentar
to heat, to warm up
Caliento la cena en el microondas.
I'm heating up dinner in the microwave.
calentar present indicative
Habitual and ongoing actions in the present.
calentar present continuous
Action in progress right now. Periphrastic: estar (present) + gerund.
calentar preterite
Completed actions at a specific moment in the past.
calentar imperfect
Habitual past actions, descriptions, background.
calentar present perfect
Completed actions with present relevance. Auxiliary haber + participle.
calentar future
Actions yet to happen.
calentar informal future
Near-future plans. Periphrastic: ir (present) + a + infinitive.
calentar future perfect
Action that will have been completed by a future moment. Auxiliary haber (future) + participle.
calentar conditional
Hypothetical or polite would-actions.
calentar conditional perfect
Hypothetical past: would have done. Auxiliary haber (conditional) + participle.
calentar pluperfect
An action completed before another past action.
calentar subjunctive present
Desires, doubts, and hypotheticals in the present.
calentar subjunctive imperfect
Past subjunctive: desires, doubts, hypotheticals in the past.
calentar subjunctive present perfect
Completed actions in subjunctive contexts.
calentar subjunctive pluperfect
Past-perfect actions in subjunctive contexts.
calentar imperative (affirmative)
Affirmative commands.
calentar imperative (negative)
Negative commands: borrows subjunctive present.