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