demostrar
Practice-readyto demonstrate
Follows model
Encontrar changes o to ue when the stem is stressed: encuentro, encuentras, encuentra, encontramos, encontráis, encuentran. This is the standard o→ue 'boot' for -ar verbs. Similar: costar, volar, s...
Conjugation
View endings (Guide)Modo
Indicativo
Indicative
Tiempo
Presente
Present Indicative
Click a tense to switch
Indicativo — Indicative
Subjuntivo — Subjunctive
Imperativo — Imperative
More tenses are rolling out over time. · Full tables for some supported tenses are visible with Pro.
Formas impersonales
These are the non‑finite verb forms used in combinations and constructions.
- Infinitivo — demostrar
- Infinitivo compuesto — haber demostrado
- Gerundio — demostrando
- Gerundio compuesto — habiendo demostrado
- Participio — demostrado
Recommended next Try Present Subjunctive →
Key forms
yo
demuestro
tú
demuestras
él/ella
demuestra
Use the present perfect for past actions that have a connection to the present or recent past.
Key forms
yo
he demostrado
tú
has demostrado
él/ella
ha demostrado
Use the preterite to describe completed past actions with a clear beginning or end.
Key forms
yo
demostré
tú
demostraste
él/ella
demostró
Use the imperfect to describe ongoing, habitual, or background actions in the past.
Key forms
yo
demostraba
tú
demostrabas
él/ella
demostraba
Use the pluperfect (pluscuamperfecto) for past actions completed before another past action.
Key forms
yo
había demostrado
tú
habías demostrado
él/ella
había demostrado
Use for past-before-past; mainly literary.
Key forms
yo
hube demostrado
tú
hubiste demostrado
él/ella
hubo demostrado
Use the future to express actions that will happen, predictions, or probability.
Key forms
yo
demostraré
tú
demostrarás
él/ella
demostrará
Use the conditional for hypothetical situations, polite requests, or future in the past.
Key forms
yo
demostraría
tú
demostrarías
él/ella
demostraría
Use the future perfect for actions that will have been completed by a future time.
Key forms
yo
habré demostrado
tú
habrás demostrado
él/ella
habrá demostrado
Use the conditional perfect for hypothetical past actions or actions that would have been completed.
Key forms
yo
habría demostrado
tú
habrías demostrado
él/ella
habría demostrado
Use the present subjunctive for wishes, doubts, emotions, and after certain conjunctions.
Key forms
yo
demuestre
tú
demuestres
él/ella
demuestre
Use for past actions with present relevance in subjunctive contexts.
Key forms
yo
haya demostrado
tú
hayas demostrado
él/ella
haya demostrado
Use for hypothetical or reported past (e.g. Si viviera…).
Key forms
yo
demostrara (demostrase)
tú
demostraras (demostrases)
él/ella
demostrara (demostrase)
Use for past-before-past in subjunctive contexts.
Key forms
yo
hubiera demostrado (hubiese demostrado)
tú
hubieras demostrado (hubieses demostrado)
él/ella
hubiera demostrado (hubiese demostrado)
Rare; legal/formal style.
Key forms
yo
demostrare
tú
demostrares
él/ella
demostrare
Rare; future perfect in subjunctive contexts.
Key forms
yo
hubiere demostrado
tú
hubieres demostrado
él/ella
hubiere demostrado
Affirmative imperative only. Negative imperative is available as a separate tense.
Key forms
yo
—
tú
demuestra
él/ella
demuestre
Negative commands: use No + form (e.g. No hables.).
Key forms
yo
—
tú
demuestres
él/ella
demuestre
More verbs like this
See all in model →Unlock full access
- Complete conjugation tables for all tenses
- Unlimited practice drills
- Full verb lists for every model
- Progress tracking & mastery scores