Conjugate sustentar in Spanish
to sustain, to support, to uphold
sustentar is a regular -ar verb ranked #2408 among the most common Spanish verbs. For example: "Esta teoría se sustenta en datos sólidos." (This theory is supported by solid data.). Use the tables below for full conjugation across all 7 tenses.
sustentar — Spanish Conjugation Chart
to sustain, to support, to uphold · -ar verb · regular · conjugado.com
Describes current actions, habits, and general truths. The most frequently used tense — master it first.
| Pronoun | Conjugation |
|---|---|
| yo | sustento |
| tú | sustentas |
| él/ella/Ud. | sustenta |
| nosotros | sustentamos |
| vosotros | sustentáis |
| ellos/ellas/Uds. | sustentan |
Esta teoría se sustenta en datos sólidos.
This theory is supported by solid data.
Describes completed past actions with a clear start and end. Key signals: ayer, el lunes pasado, de repente.
| Pronoun | Conjugation |
|---|---|
| yo | sustenté |
| tú | sustentaste |
| él/ella/Ud. | sustentó |
| nosotros | sustentamos |
| vosotros | sustentasteis |
| ellos/ellas/Uds. | sustentaron |
Ayer yo sustenté.
Yesterday I sustain, to support, to uphold.
Describes habitual past actions, background context, and ongoing states. Key signals: siempre, normalmente, cuando era niño.
| Pronoun | Conjugation |
|---|---|
| yo | sustentaba |
| tú | sustentabas |
| él/ella/Ud. | sustentaba |
| nosotros | sustentábamos |
| vosotros | sustentabais |
| ellos/ellas/Uds. | sustentaban |
Antes yo sustentaba con frecuencia.
Before, I used to sustain, to support, to uphold often.
Describes future events and predictions. In everyday speech, ir a + infinitive is often preferred for planned events.
| Pronoun | Conjugation |
|---|---|
| yo | sustentaré |
| tú | sustentarás |
| él/ella/Ud. | sustentará |
| nosotros | sustentaremos |
| vosotros | sustentaréis |
| ellos/ellas/Uds. | sustentarán |
Mañana yo sustentaré.
Tomorrow I will sustain, to support, to uphold.
Expresses what would happen under certain conditions — equivalent to "would" in English. Also used for polite requests.
| Pronoun | Conjugation |
|---|---|
| yo | sustentaría |
| tú | sustentarías |
| él/ella/Ud. | sustentaría |
| nosotros | sustentaríamos |
| vosotros | sustentaríais |
| ellos/ellas/Uds. | sustentarían |
Si pudiera, yo sustentaría.
If I could, I would sustain, to support, to uphold.
Used in clauses expressing wishes, doubt, emotion, or uncertainty — typically after que. Triggers: querer, esperar, dudar, ojalá.
| Pronoun | Conjugation |
|---|---|
| yo | sustente |
| tú | sustentes |
| él/ella/Ud. | sustente |
| nosotros | sustentemos |
| vosotros | sustentéis |
| ellos/ellas/Uds. | sustenten |
Espero que tú sustentes.
I hope that you sustain, to support, to uphold.
Used to give commands and direct requests. Affirmative and negative forms differ significantly in Spanish.
| Pronoun | Conjugation |
|---|---|
| yo | - |
| tú | sustenta |
| él/ella/Ud. | sustente |
| nosotros | sustentemos |
| vosotros | sustentad |
| ellos/ellas/Uds. | sustenten |
Esta teoría se sustenta en datos sólidos.
This theory is supported by solid data.
Test yourself
Type the correct conjugation for each prompt.
Example sentences
-
Esta teoría se sustenta en datos sólidos.
This theory is supported by solid data.
-
El trabajo sustenta a toda la familia.
The job sustains the whole family.
Common phrases with sustentar
- sustentar una tesis to uphold a thesis
- sustentar a la familia to support the family