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How to Say "demonstrated" in Spanish

English → Spanish

demostrado

deh-mohs-TRAH-doh/demoˈstraðo/

adjectiveB1general
Use 'demostrado' when you want to say something is a 'proven' or 'established' fact, often appearing after the noun it modifies.
A large, shiny gold medal resting on a small pedestal, symbolizing a proven fact or result.

Examples

Es un hecho demostrado que el ejercicio mejora la memoria.

It is a proven fact that exercise improves memory.

La eficacia del nuevo medicamento ya está demostrada.

The effectiveness of the new medication is already established (proven).

Agreement is Key

As an adjective, 'demostrado' must match the thing it describes in both gender and number: 'un resultado demostrado' (masc. sing.) vs. 'unas teorías demostradas' (fem. plural).

Using the Wrong Ending

Mistake: “La verdad está demostrado.”

Correction: La verdad está demostrada. (Truth is feminine, so the ending must be -a.)

mostró

verbB1general
Use 'mostró' (the past tense of 'mostrar') when you mean that something actively 'showed,' 'proved,' or 'demonstrated' a point or a result.

Examples

El informe mostró que las ventas habían caído un 10%.

The report demonstrated that sales had fallen 10%.

Adjective vs. Verb Confusion

Learners often confuse 'demostrado' and 'mostró' because both relate to showing or proving. Remember that 'demostrado' usually acts as an adjective meaning 'proven,' while 'mostró' is the verb 'showed' or 'demonstrated' in action.

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