Non-finite forms
Infinitivo and Gerundio
| Form | Spanish | Use |
|---|---|---|
| Infinitivo | demostrar | Dictionary form and base form for many compound structures. |
| Gerundio | demostrando | Used with estar for progressive forms, for example estar demostrando. |
Spanish verb conjugation
Demostrar conjugation
demostrar is a regular Spanish -AR verb meaning demonstrate / show. In the present tense: yo demuestro, tú demuestras, él/ella demuestra, nosotros demostramos, vosotros demostráis, ellos demuestran. Full conjugation across 18 tenses below.
Rank #131-ARRegular18 tense tables
At a glance
- Infinitive
- demostrar
- Gerundio
- demostrando
- Meaning
- demonstrate / show
- Pattern
- Regular
- Difficulty
- Level 2
Conjugation tables
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Demostrar across the MuyVerbs tense system
Study present continuous
Presente
Present
| Pronoun | Form | Context |
|---|---|---|
| yo | demuestro | Yo demuestro mis ideas con hechos claros.I demonstrate my ideas with clear facts. |
| tú | demuestras | Tú demuestras mucha paciencia en clase.You show a lot of patience in class. |
| él | demuestra | Él demuestra su talento sin hablar mucho.He demonstrates his talent without speaking much. |
| nosotros | demostramos | Nosotros demostramos respeto con acciones.We show respect through actions. |
| vosotros | demostráis | Vosotros demostráis interés en el proyecto.You show interest in the project. |
| ellos | demuestran | Ellos demuestran disciplina todos los días.They demonstrate discipline every day. |
Pretérito Perfecto
Present Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | he demostrado | Yo he demostrado mis ideas con datos hoy.I have demonstrated my ideas with data today. |
| tú | has demostrado | Tú has demostrado mucha paciencia esta semana.You have shown a lot of patience this week. |
| él | ha demostrado | Él ha demostrado su talento ya.He has demonstrated his talent already. |
| nosotros | hemos demostrado | Nosotros hemos demostrado respeto en todo momento.We have shown respect at all times. |
| vosotros | habéis demostrado | Vosotros habéis demostrado interés en la reunión.You have shown interest in the meeting. |
| ellos | han demostrado | Ellos han demostrado disciplina este mes.They have demonstrated discipline this month. |
Pretérito Indefinido
Preterite
| Pronoun | Form | Context |
|---|---|---|
| yo | demostré | Ayer yo demostré mis ideas con calma.Yesterday I demonstrated my ideas calmly. |
| tú | demostraste | Tú demostraste mucha paciencia con todos.You showed a lot of patience with everyone. |
| él | demostró | Él demostró su talento en la prueba.He demonstrated his talent in the test. |
| nosotros | demostramos | Nosotros demostramos respeto en la discusión.We showed respect in the discussion. |
| vosotros | demostrasteis | Vosotros demostrasteis interés desde el inicio.You showed interest from the beginning. |
| ellos | demostraron | Ellos demostraron disciplina durante el curso.They demonstrated discipline during the course. |
Pretérito Imperfecto
Imperfect
| Pronoun | Form | Context |
|---|---|---|
| yo | demostraba | Yo demostraba mis ideas con ejemplos antes.I used to demonstrate my ideas with examples before. |
| tú | demostrabas | Tú demostrabas mucha paciencia siempre.You used to show a lot of patience always. |
| él | demostraba | Él demostraba su talento desde pequeño.He used to demonstrate his talent since childhood. |
| nosotros | demostrábamos | Nosotros demostrábamos respeto en cada debate.We used to show respect in every debate. |
| vosotros | demostrabais | Vosotros demostrabais interés en todo.You used to show interest in everything. |
| ellos | demostraban | Ellos demostraban disciplina en clase.They used to demonstrate discipline in class. |
Pretérito Pluscuamperfecto
Past Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | había demostrado | Yo había demostrado mis ideas antes de hablar.I had demonstrated my ideas before speaking. |
| tú | habías demostrado | Tú habías demostrado mucha paciencia ya.You had shown a lot of patience already. |
| él | había demostrado | Él había demostrado su talento antes del examen.He had demonstrated his talent before the exam. |
| nosotros | habíamos demostrado | Nosotros habíamos demostrado respeto hasta entonces.We had shown respect until then. |
| vosotros | habíais demostrado | Vosotros habíais demostrado interés previamente.You had shown interest previously. |
| ellos | habían demostrado | Ellos habían demostrado disciplina desde el inicio.They had demonstrated discipline from the start. |
Pretérito Anterior
Preterite Anterior
| Pronoun | Form | Context |
|---|---|---|
| yo | hube demostrado | Cuando yo hube demostrado mis ideas, me escucharon.When I had demonstrated my ideas, they listened to me. |
| tú | hubiste demostrado | En cuanto tú hubiste demostrado paciencia, todos se calmaron.As soon as you had shown patience, everyone calmed down. |
| él | hubo demostrado | Después de que él hubo demostrado su talento, lo felicitaron.After he had demonstrated his talent, they congratulated him. |
| nosotros | hubimos demostrado | Apenas nosotros hubimos demostrado respeto, cambió el tono.As soon as we had shown respect, the tone changed. |
| vosotros | hubisteis demostrado | Una vez que vosotros hubisteis demostrado interés, os ayudaron.Once you had shown interest, they helped you. |
| ellos | hubieron demostrado | Cuando ellos hubieron demostrado disciplina, todos confiaron más.When they had demonstrated discipline, everyone trusted more. |
Futuro
Future
| Pronoun | Form | Context |
|---|---|---|
| yo | demostraré | Yo demostraré mis ideas con más pruebas.I will demonstrate my ideas with more evidence. |
| tú | demostrarás | Tú demostrarás mucha paciencia mañana.You will show a lot of patience tomorrow. |
| él | demostrará | Él demostrará su talento otra vez.He will demonstrate his talent again. |
| nosotros | demostraremos | Nosotros demostraremos respeto en todo momento.We will show respect at all times. |
| vosotros | demostraréis | Vosotros demostraréis interés en el debate.You will show interest in the debate. |
| ellos | demostrarán | Ellos demostrarán disciplina desde el primer día.They will demonstrate discipline from the first day. |
Futuro Perfecto
Future Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habré demostrado | Para entonces yo habré demostrado mis ideas claramente.By then I will have demonstrated my ideas clearly. |
| tú | habrás demostrado | Tú habrás demostrado mucha paciencia para entonces.You will have shown a lot of patience by then. |
| él | habrá demostrado | Él habrá demostrado su talento varias veces.He will have demonstrated his talent several times. |
| nosotros | habremos demostrado | Nosotros habremos demostrado respeto constante.We will have shown constant respect. |
| vosotros | habréis demostrado | Vosotros habréis demostrado interés suficiente.You will have shown enough interest. |
| ellos | habrán demostrado | Ellos habrán demostrado disciplina durante meses.They will have demonstrated discipline for months. |
Condicional
Conditional
| Pronoun | Form | Context |
|---|---|---|
| yo | demostraría | Yo demostraría mis ideas con más calma.I would demonstrate my ideas more calmly. |
| tú | demostrarías | Tú demostrarías mucha paciencia con niños.You would show a lot of patience with children. |
| él | demostraría | Él demostraría su talento con otra oportunidad.He would demonstrate his talent with another opportunity. |
| nosotros | demostraríamos | Nosotros demostraríamos respeto en cualquier situación.We would show respect in any situation. |
| vosotros | demostraríais | Vosotros demostraríais interés con mejores preguntas.You would show interest with better questions. |
| ellos | demostrarían | Ellos demostrarían disciplina con un buen líder.They would demonstrate discipline with a good leader. |
Condicional Perfecto
Conditional Perfect
| Pronoun | Form | Context |
|---|---|---|
| yo | habría demostrado | Yo habría demostrado mis ideas con más pruebas.I would have demonstrated my ideas with more evidence. |
| tú | habrías demostrado | Tú habrías demostrado mucha paciencia en otra situación.You would have shown a lot of patience in another situation. |
| él | habría demostrado | Él habría demostrado su talento antes si hubiera podido.He would have demonstrated his talent earlier if he had been able to. |
| nosotros | habríamos demostrado | Nosotros habríamos demostrado respeto en todo momento.We would have shown respect at all times. |
| vosotros | habríais demostrado | Vosotros habríais demostrado interés con más tiempo.You would have shown interest with more time. |
| ellos | habrían demostrado | Ellos habrían demostrado disciplina con mejores condiciones.They would have demonstrated discipline with better conditions. |
Subjuntivo Presente
Present Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | demuestre | Espero que yo demuestre mis ideas con claridad.I hope that I demonstrate my ideas clearly. |
| tú | demuestres | Quiero que tú demuestres paciencia.I want you to show patience. |
| él | demuestre | Es importante que él demuestre su talento.It is important that he demonstrate his talent. |
| nosotros | demostremos | Deseo que nosotros demostremos respeto siempre.I wish that we always show respect. |
| vosotros | demostréis | Es mejor que vosotros demostréis interés real.It is better that you show real interest. |
| ellos | demuestren | Temo que ellos no demuestren disciplina.I fear that they may not demonstrate discipline. |
Subjuntivo Pretérito Perfecto
Present Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | haya demostrado | Dudo que yo haya demostrado mis ideas bien.I doubt that I have demonstrated my ideas well. |
| tú | hayas demostrado | No creo que tú hayas demostrado paciencia suficiente.I do not think that you have shown enough patience. |
| él | haya demostrado | Es posible que él haya demostrado su talento ya.It is possible that he has demonstrated his talent already. |
| nosotros | hayamos demostrado | Es probable que nosotros hayamos demostrado respeto constante.It is likely that we have shown constant respect. |
| vosotros | hayáis demostrado | No parece que vosotros hayáis demostrado interés real.It does not seem that you have shown real interest. |
| ellos | hayan demostrado | Puede que ellos hayan demostrado disciplina últimamente.They may have demonstrated discipline lately. |
Subjuntivo Pretérito Imperfecto
Imperfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | demostrara | Si yo demostrara mis ideas mejor, me entenderían más.If I demonstrated my ideas better, they would understand me more. |
| tú | demostraras | Si tú demostraras paciencia, todo sería más fácil.If you showed patience, everything would be easier. |
| él | demostrara | Si él demostrara su talento, le darían otra oportunidad.If he demonstrated his talent, they would give him another opportunity. |
| nosotros | demostráramos | Si nosotros demostráramos respeto, habría menos tensión.If we showed respect, there would be less tension. |
| vosotros | demostrarais | Si vosotros demostrarais interés, os explicarían más.If you showed interest, they would explain more to you. |
| ellos | demostraran | Si ellos demostraran disciplina, avanzarían más.If they demonstrated discipline, they would make more progress. |
Subjuntivo Pretérito Pluscuamperfecto
Past Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiera demostrado | Si yo hubiera demostrado mis ideas mejor, me habrían entendido.If I had demonstrated my ideas better, they would have understood me. |
| tú | hubieras demostrado | Si tú hubieras demostrado paciencia, todo habría sido más fácil.If you had shown patience, everything would have been easier. |
| él | hubiera demostrado | Si él hubiera demostrado su talento, le habrían dado otra oportunidad.If he had demonstrated his talent, they would have given him another opportunity. |
| nosotros | hubiéramos demostrado | Si nosotros hubiéramos demostrado respeto, habría menos conflicto.If we had shown respect, there would have been less conflict. |
| vosotros | hubierais demostrado | Si vosotros hubierais demostrado interés, os habrían explicado más.If you had shown interest, they would have explained more to you. |
| ellos | hubieran demostrado | Si ellos hubieran demostrado disciplina, habrían avanzado más.If they had demonstrated discipline, they would have progressed more. |
Subjuntivo Futuro
Future Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | demostrare | Si algún día yo demostrare mis ideas mejor, lo notarás.If someday I should demonstrate my ideas better, you will notice it. |
| tú | demostrares | Si tú demostrares paciencia, lo resolverás.If you should show patience, you will solve it. |
| él | demostrare | Si él demostrare su talento, destacará.If he should demonstrate his talent, he will stand out. |
| nosotros | demostráremos | Si nosotros demostráremos respeto, todo mejorará.If we should show respect, everything will improve. |
| vosotros | demostrareis | Si vosotros demostrareis interés, os ayudarán.If you should show interest, they will help you. |
| ellos | demostraren | Si ellos demostraren disciplina, ganarán confianza.If they should demonstrate discipline, they will gain confidence. |
Subjuntivo Futuro Perfecto
Future Perfect Subjunctive
| Pronoun | Form | Context |
|---|---|---|
| yo | hubiere demostrado | Cuando yo hubiere demostrado mis ideas, descansaremos.When I shall have demonstrated my ideas, we will rest. |
| tú | hubieres demostrado | Cuando tú hubieres demostrado paciencia, todos lo notarán.When you shall have shown patience, everyone will notice it. |
| él | hubiere demostrado | Cuando él hubiere demostrado su talento, cambiará su situación.When he shall have demonstrated his talent, his situation will change. |
| nosotros | hubiéremos demostrado | Cuando nosotros hubiéremos demostrado respeto, habrá más calma.When we shall have shown respect, there will be more calm. |
| vosotros | hubiereis demostrado | Cuando vosotros hubiereis demostrado interés, seguirán hablando.When you shall have shown interest, they will continue talking. |
| ellos | hubieren demostrado | Cuando ellos hubieren demostrado disciplina, recibirán más apoyo.When they shall have demonstrated discipline, they will receive more support. |
Imperativo Afirmativo
Affirmative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | — |
| tú | demuestra | Tú, demuestra tus ideas con hechos.You, demonstrate your ideas with facts. |
| él | demuestre | Que él demuestre su talento ahora.Let him demonstrate his talent now. |
| nosotros | demostremos | demostremos respeto en todo momento.Let us show respect at all times. |
| vosotros | demostrad | Vosotros, demostrad interés real.You, show real interest. |
| ellos | demuestren | Que ellos demuestren disciplina hoy.Let them demonstrate discipline today. |
Imperativo Negativo
Negative Imperative
| Pronoun | Form | Context |
|---|---|---|
| yo | - | — |
| tú | no demuestres | No no demuestres nervios delante de todos.Do not show nervousness in front of everyone. |
| él | no demuestre | Que él no no demuestre desprecio.Let him not show contempt. |
| nosotros | no demostremos | No no demostremos miedo ahora.Let us not show fear now. |
| vosotros | no demostréis | No no demostréis desinterés en clase.Do not show disinterest in class. |
| ellos | no demuestren | Que ellos no no demuestren arrogancia.Let them not show arrogance. |
Free web drill
Practice demostrar
1 / 1
Presente•yo
Yo ___ mis ideas con hechos claros.
I demonstrate my ideas with clear facts.
Need grammar help?How to form Presente
Use Presente for facts, habits, current states, and regular actions.
Formation
- 1Remove the infinitive ending: -ar, -er, or -ir.
- 2Add the present endings for the subject.
- 3Watch high-frequency irregulars like ser, estar, ir, tener, hacer, and decir.
Pattern
-ar: o, as, a, amos, áis, an-er: o, es, e, emos, éis, en-ir: o, es, e, imos, ís, en
Examples
hablar -> yo hablocomer -> él comevivir -> vosotros vivís
Presente is the base system. Master the endings first, then handle irregular yo forms and stem changes.
Grammar to master with demostrar
Related Spanish grammar topics
Concepts that come up every time you conjugate demostrar. Each is a short, focused guide.
Common questions
Demostrar conjugation — frequently asked
Short, direct answers to what learners search most about demostrar.
- What does 'demostrar' mean in English?
- In Spanish, 'demostrar' means to demonstrate / show. It is a regular -AR verb used across all 18 standard Spanish tenses.
- Is demostrar an irregular verb in Spanish?
- Demostrar is a regular -AR verb. Its endings follow the standard pattern in every tense without stem or root changes.
- How do you conjugate demostrar in the present tense?
- Present tense (Presente) of demostrar: yo demuestro, tú demuestras, él/ella/usted demuestra, nosotros demostramos, vosotros demostráis, ellos/ellas/ustedes demuestran.
- How do you conjugate demostrar in the preterite?
- Preterite (Pretérito Indefinido) of demostrar: yo demostré, tú demostraste, él/ella/usted demostró, nosotros demostramos, vosotros demostrasteis, ellos/ellas/ustedes demostraron. This tense expresses completed past actions at a defined point in time.
- What is the imperfect tense of demostrar?
- Imperfect (Pretérito Imperfecto) of demostrar: yo demostraba, tú demostrabas, él/ella/usted demostraba, nosotros demostrábamos, vosotros demostrabais, ellos/ellas/ustedes demostraban. The imperfect describes past habits, ongoing actions, and background states.
- What is the past participle of demostrar?
- The past participle of demostrar is 'demostrado'. It is used to form compound tenses with the auxiliary verb haber — for example, 'he demostrado' (I have demonstrate / showed), 'has demostrado', 'ha demostrado'.
- What is the gerundio (present participle) of demostrar?
- The gerundio of demostrar is 'demostrando'. It pairs with estar to form the present continuous (estoy demostrando) and other progressive tenses, indicating an action in progress.
Related verbs
Continue with verbs that share the same ending and difficulty band.