demonstrar

Central Bikol

Etymology

Pseudo-Hispanism, from English demonstrate, and influenced by Spanish demostrar.

Pronunciation

• Hyphenation: de‧mons‧trar
• IPA^(key): /demonsˈtɾaɾ/ [d̪e.mon̪sˈtɾaɾ]

Verb

demonstrár

1. alternative form of demostrar

Ido

Etymology

Borrowed from Esperanto demonstri, English demonstrate, French démontrer, German demonstrieren, Italian dimostrare, Russian демонстри́ровать (demonstrírovatʹ), Spanish demostrar, ultimately from Latin dēmōnstrō (“to demonstrate”).

Pronunciation

• IPA^(key): /deˈmonstrar/

Verb

demonstrar (present tense demonstras, past tense demonstris, future tense demonstros, imperative demonstrez, conditional demonstrus)

1. (transitive) to demonstrate

Conjugation

Conjugation of demonstrar

		present		past		future
infinitive		demonstrar		demonstrir		demonstror
tense		demonstras		demonstris		demonstros
conditional		demonstrus		—		—
imperative		demonstrez		—		—
adjective active participle		demonstranta		demonstrinta		demonstronta
adverbial active participle		demonstrante		demonstrinte		demonstronte
nominal active participle	singular	demonstranto		demonstrinto		demonstronto
	plural	demonstranti		demonstrinti		demonstronti
adjective passive participle		demonstrata		demonstrita		demonstrota
adverbial passive participle		demonstrate		demonstrite		demonstrote
nominal passive participle	singular	demonstrato		demonstrito		demonstroto
	plural	demonstrati		demonstriti		demonstroti

Portuguese

Etymology

From Old Galician-Portuguese demonstrar, demostrar, from Latin dēmōnstrāre (“to demonstrate”), with a re-Latinized spelling.

Pronunciation

 

• (Brazil) IPA^(key): /de.mõsˈtɾa(ʁ)/ [de.mõsˈtɾa(h)]

• (Brazil) IPA^(key): /de.mõsˈtɾa(ʁ)/ [de.mõsˈtɾa(h)]
  • (São Paulo) IPA^(key): /de.mõsˈtɾa(ɾ)/
  • (Rio de Janeiro) IPA^(key): /de.mõʃˈtɾa(ʁ)/ [de.mõʃˈtɾa(χ)]
  • (Caipira) IPA^(key): /de.mõsˈtɾa(ɻ)/

 

• (Portugal) IPA^(key): /dɨ.mõʃˈtɾaɾ/

• (Portugal) IPA^(key): /dɨ.mõʃˈtɾaɾ/
  • (Southern Portugal) IPA^(key): /dɨ.mõʃˈtɾa.ɾi/

Verb

demonstrar (first-person singular present demonstro, first-person singular preterite demonstrei, past participle demonstrado)

1. to demonstrate (all senses)
2. to show, prove

Conjugation

    Conjugation of demonstrar (See Appendix:Portuguese verbs)

	Singular			Plural
	First-person (eu)	Second-person (tu)	Third-person (ele / ela / você)	First-person (nós)	Second-person (vós)	Third-person (eles / elas / vocês)
Infinitive
Impersonal	demonstrar
Personal	demonstrar	demonstrares	demonstrar	demonstrarmos	demonstrardes	demonstrarem
Gerund
	demonstrando
Past participle
Masculine	demonstrado			demonstrados
Feminine	demonstrada			demonstradas
Indicative
Present	demonstro	demonstras	demonstra	demonstramos	demonstrais	demonstram
Imperfect	demonstrava	demonstravas	demonstrava	demonstrávamos	demonstráveis	demonstravam
Preterite	demonstrei	demonstraste	demonstrou	demonstramos1, demonstrámos2	demonstrastes	demonstraram
Pluperfect	demonstrara	demonstraras	demonstrara	demonstráramos	demonstráreis	demonstraram
Future	demonstrarei	demonstrarás	demonstrará	demonstraremos	demonstrareis	demonstrarão
Conditional	demonstraria	demonstrarias	demonstraria	demonstraríamos	demonstraríeis	demonstrariam
Subjunctive
Present	demonstre	demonstres	demonstre	demonstremos	demonstreis	demonstrem
Imperfect	demonstrasse	demonstrasses	demonstrasse	demonstrássemos	demonstrásseis	demonstrassem
Future	demonstrar	demonstrares	demonstrar	demonstrarmos	demonstrardes	demonstrarem
Imperative
Affirmative		demonstra	demonstre	demonstremos	demonstrai	demonstrem
Negative (não)		não demonstres	não demonstre	não demonstremos	não demonstreis	não demonstrem

¹Brazilian Portuguese.
²European Portuguese.

Related terms

• demonstração
• demonstrável

Further reading

• “demonstrar”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “demonstrar”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Spanish

Pronunciation

• IPA^(key): /demonsˈtɾaɾ/ [d̪e.mõnsˈt̪ɾaɾ]
• Rhymes: -aɾ
• Syllabification: de‧mons‧trar

Verb

demonstrar

1. obsolete form of demostrar

Usage notes

• It has the anomaly of changing the on to ue in some tenses and persons: such as yo demuestro, demuestra tu, demuestre aquel, &c.

Conjugation

This verb needs an inflection-table template.

Further reading

• “demonstrar”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025
• Diccionario de Autoridades(1726-1739)