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