Costar Conjugation: all tenses with charts
costar — to cost
Present tense
cuesto, cuestas, cuesta, costamos, costáis, cuestan
Participle costado · gerund costando
costar — present
presente · What is true now, what happens regularly, and settled plans.
| yo | cuesto |
| tú | cuestas |
| él / ella / usted | cuesta |
| nosotros | costamos |
| vosotros | costáis |
| ellos / ustedes | cuestan |
costar — preterite
pretérito indefinido · A finished event that moves the story forward.
| yo | costé |
| tú | costaste |
| él / ella / usted | costó |
| nosotros | costamos |
| vosotros | costasteis |
| ellos / ustedes | costaron |
costar — imperfect
pretérito imperfecto · Habits, background and description in the past.
| yo | costaba |
| tú | costabas |
| él / ella / usted | costaba |
| nosotros | costábamos |
| vosotros | costabais |
| ellos / ustedes | costaban |
costar — future
futuro simple · What will happen — and guesses about what is happening now.
| yo | costaré |
| tú | costarás |
| él / ella / usted | costará |
| nosotros | costaremos |
| vosotros | costaréis |
| ellos / ustedes | costarán |
costar — conditional
condicional simple · Would: polite requests and unreal situations.
| yo | costaría |
| tú | costarías |
| él / ella / usted | costaría |
| nosotros | costaríamos |
| vosotros | costaríais |
| ellos / ustedes | costarían |
costar — present subjunctive
presente de subjuntivo · After wish, doubt, emotion and necessity.
| yo | cueste |
| tú | cuestes |
| él / ella / usted | cueste |
| nosotros | costemos |
| vosotros | costéis |
| ellos / ustedes | cuesten |
costar — imperfect subjunctive
imperfecto de subjuntivo · Past-tense triggers and si clauses about the unreal.
| yo | costara |
| tú | costaras |
| él / ella / usted | costara |
| nosotros | costáramos |
| vosotros | costarais |
| ellos / ustedes | costaran |
The -se forms mean exactly the same: costase, costases, costase…
costar — commands
imperativo · the negative forms come from the subjunctive, which is why they never match the affirmative ones.
| Person | Affirmative | Negative |
|---|---|---|
| tú | cuesta | no cuestes |
| él / ella / usted | cueste | no cueste |
| nosotros | costemos | no costemos |
| vosotros | costad | no costéis |
| ellos / ustedes | cuesten | no cuesten |
costar — compound tenses
All of them are haber plus the participle costado — learn haber once and every compound tense comes free.
| Present perfect | he costado |
| Past perfect | había costado |
| Future perfect | habré costado |
| Conditional perfect | habría costado |
| Present perfect subjunctive | haya costado |
| Pluperfect subjunctive | hubiera costado |
Conjugate it yourself
Type the form — these are the cells people get wrong most often.
costar — yo · present
A chart you read once is a chart you forget
Trazo puts costar into spaced repetition and brings it back exactly when you are about to lose it — next to the grammar and the sentences from your own lessons.