costar Future Conjugation
costar — to cost
The future of costar is regular: costaré, costarás, costará, costaremos, costaréis, costarán.
costar Future Forms
When to Use the Future
Use the future to predict price changes or to speculate about how difficult something might be in the future.
Notes on costar in the Future
Costar is fully regular in the future; simply add the endings to the infinitive.
Example Sentences
La reparación costará unos cien euros.
The repair will cost about a hundred euros.
él/ella/usted
Te costará tiempo aprender a tocar el piano.
It will take you time to learn to play the piano.
él/ella/usted
Las casas costarán más el próximo año.
Houses will cost more next year.
ellos/ellas/ustedes
Common Mistakes
Mistake: Stem-changing in the future (cuestará).
Correct: costará
Why: The future tense always uses the full infinitive 'costar' as the base.
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Related Tenses
Present
yo: cuesto
In the present tense, costar follows an o-to-ue stem change: cuesto, cuestas, cuesta, costamos, costáis, cuestan.
Preterite
yo: costé
The preterite of costar is regular: costé, costaste, costó, costamos, costasteis, costaron.
Imperfect
yo: costaba
The imperfect of costar is regular: costaba, costabas, costaba, costábamos, costabais, costaban.
Conditional
yo: costaría
The conditional of costar is regular: costaría, costarías, costaría, costaríamos, costaríais, costarían.
Present Subjunctive
yo: cueste
The present subjunctive follows the o-to-ue stem change: cueste, cuestes, cueste, costemos, costéis, cuesten.
Imperfect Subjunctive
yo: costara
The imperfect subjunctive of costar is regular: costara, costaras, costara, costáramos, costarais, costaran.
Affirmative Imperative
yo: cuesta
The imperative of costar uses the stem-changed 'cuesta' (tú) and 'cuesten' (ustedes).
Negative Imperative
yo: no cuestes
The negative imperative uses the present subjunctive: no cuestes, no cueste, no costemos, no costéis, no cuesten.