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