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