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