abrir
to open, to unlock, to turn on
Abre la ventana, hace calor.
Open the window, it's hot.
abrir present indicative
Habitual and ongoing actions in the present.
abrir present continuous
Action in progress right now. Periphrastic: estar (present) + gerund.
abrir preterite
Completed actions at a specific moment in the past.
abrir imperfect
Habitual past actions, descriptions, background.
abrir present perfect
Completed actions with present relevance. Auxiliary haber + participle.
abrir future
Actions yet to happen.
abrir informal future
Near-future plans. Periphrastic: ir (present) + a + infinitive.
abrir future perfect
Action that will have been completed by a future moment. Auxiliary haber (future) + participle.
abrir conditional
Hypothetical or polite would-actions.
abrir conditional perfect
Hypothetical past: would have done. Auxiliary haber (conditional) + participle.
abrir pluperfect
An action completed before another past action.
abrir subjunctive present
Desires, doubts, and hypotheticals in the present.
abrir subjunctive imperfect
Past subjunctive: desires, doubts, hypotheticals in the past.
abrir subjunctive present perfect
Completed actions in subjunctive contexts.
abrir subjunctive pluperfect
Past-perfect actions in subjunctive contexts.
abrir imperative (affirmative)
Affirmative commands.
abrir imperative (negative)
Negative commands: borrows subjunctive present.