demuestra
/deh-MWEHS-trah/
shows
Demuestra means "shows." This child clearly demuestra (shows) the apple.
demuestra(verb)
shows
?He/She shows an object or quality
,displays
?Exhibiting something physical
exhibits
?Formal display
,proves
?Presenting evidence
📝 In Action
Ella demuestra mucha paciencia con los niños.
A2She shows a lot of patience with the children.
El museo demuestra una colección de arte moderno.
B1The museum displays a modern art collection.
¡Demuestra que puedes hacerlo! (Tú, command)
A2Show that you can do it!
💡 Grammar Points
Verb Function
"Demuestra" can mean 'he/she/it shows' or 'you (formal) show' right now. It can also be the informal command 'Show!'
The 'O to UE' Change
The verb 'demostrar' is irregular because the 'o' changes to 'ue' in most present tense forms, like 'demuestra,' but not in 'nosotros' or 'vosotros' (e.g., 'demostramos').
❌ Common Pitfalls
Missing the Stem Change
Mistake: "Using *demostra* instead of *demuestra*."
Correction: Remember the 'o' changes to 'ue': *demuestra*. This pattern is shared by many Spanish verbs like *poder* and *volver*.
⭐ Usage Tips
Emotional Display
Use 'demuestra' often when talking about someone revealing feelings or personality traits, like 'demuestra valentía' (shows bravery).
Demuestra can also mean "proves." The stable construction demuestra (proves) that the design works.
demuestra(verb)
proves
?He/She proves a point or a theory
establishes
?To establish a fact
,validates
?To confirm the truth of something
📝 In Action
El informe demuestra que la nueva política funciona.
B1The report proves that the new policy works.
Usted demuestra su compromiso con cada acción.
B2You demonstrate your commitment with every action.
La ciencia demuestra la conexión entre dieta y salud.
B2Science proves the connection between diet and health.
💡 Grammar Points
When to Use the Indicative
When 'demostrar' is used to state a fact that is certain, the verb that follows often stays in the normal (indicative) form: 'Demuestra que él es el culpable' (It proves he is the culprit).
⭐ Usage Tips
Formal Contexts
Use this meaning when discussing evidence, mathematics, logic, or research findings. It's stronger than just 'showing'.
🔄 Conjugations
indicative
present
imperfect
preterite
subjunctive
present
imperfect
✏️ Quick Practice
💡 Quick Quiz: demuestra
Question 1 of 1
Which sentence uses 'demuestra' as an informal command?
📚 More Resources
Frequently Asked Questions
What is the difference between 'demuestra' and 'muestra'?
Both mean 'shows,' but 'demuestra' (from *demostrar*) often implies a stronger act of showing, proving, or exhibiting something clearly and definitively (like proving a theory). 'Muestra' (from *mostrar*) is generally used for a simpler action of pointing something out or making it visible.
Why does 'demuestra' have an 'ue' but 'demostramos' has an 'o'?
This is a common feature of Spanish stem-changing verbs. The vowel change ('o' to 'ue') only happens when that vowel is stressed when you say the word. In 'demuestra,' the 'ue' is stressed, but in 'demostramos,' the stress falls on the 'a,' so the 'o' remains unchanged.