The Present Tense of Demostrar is used to express actions happening in the present moment. For example, Demuestro mi habilidad para resolver problemas. (I demonstrate my ability to solve problems.)

Demostrar is a stem-changing verb, meaning the vowel in the stem changes in certain conjugations. The o changes to ue in all forms except nosotros and vosotros.

Conjugations

Conjugations of Demostrar (to demonstrate) in the Present Tense tense (Castilian Spanish):

Demostrar generally means to demonstrate or show, but has several different meanings in the Present Tense, some of which might surprise you.

To prove or demonstrate: For example, Yo demuestro que la teoría es correcta con estos experimentos. (I demonstrate that the theory is correct with these experiments.)

To show or exhibit: For example, Ella demuestra mucha paciencia con los niños. (She shows a lot of patience with the children.)

To manifest or reveal: For example, Los resultados demuestran que el método funciona. (The results demonstrate that the method works.)

To express or convey (a feeling or emotion): For example, Él demuestra su amor por la música tocando el piano. (He demonstrates his love for music by playing the piano.)

Colloquial usage (rude): For example, ¡Demuestra que eres un hombre y enfrenta tus problemas! (Demonstrate that you’re a man and face your problems!)

Examples

Examples of Demostrar in the Present Tense

Cada mañana demuestro mi habilidad para hacer ejercicio. (Every morning I demonstrate my ability to exercise.)

Tú siempre demuestras mucha paciencia con los niños. (You always demonstrate a lot of patience with the children.)

El equipo demuestra un gran espíritu de lucha en cada partido. (The team demonstrates a great fighting spirit in every game.)

Demostramos nuestro compromiso con el medio ambiente reciclando. (We demonstrate our commitment to the environment by recycling.)

Ustedes demuestran mucho entusiasmo en la clase de baile. (You all demonstrate a lot of enthusiasm in the dance class.)

Mis compañeros de trabajo demuestran gran profesionalismo. (My coworkers demonstrate great professionalism.)

En la cocina, demuestro mis habilidades culinarias. (In the kitchen, I demonstrate my culinary skills.)

¿Cómo demuestras tu amor por tu pareja? (How do you demonstrate your love for your partner?)

El artista demuestra su talento en cada pintura. (The artist demonstrates their talent in every painting.)

Demostramos respeto por las tradiciones locales. (We demonstrate respect for local traditions.)

Ustedes demuestran mucha creatividad en sus proyectos. (You all demonstrate a lot of creativity in your projects.)

Los manifestantes demuestran su descontento con el gobierno. (The protesters demonstrate their discontent with the government.)

En la empresa, demuestro liderazgo y visión. (At the company, I demonstrate leadership and vision.)

Tú demuestras mucha madurez para tu edad. (You demonstrate a lot of maturity for your age.)

Los atletas demuestran una gran determinación en la competencia. (The athletes demonstrate great determination in the competition.)

Conjugations with English Translations

Conjugations of Demostrar (to demonstrate) in the Present Tense tense (Castilian Spanish) with English Translations:

This post covers Castilian Spanish. For Latin American Spanish, click here

Synonyms

The Present tense is also known as the Simple Present, Present Simple, Present Tense, or Present Indicative in English, and as Presente de Indicativo, Presente Simple, Tiempo Presente, or Indicativo Presente in Spanish.