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