investigar

Catalan

Etymology

Borrowed from Latin investīgāre.

Pronunciation

• IPA^(key): (Northern, Central) [im.bəs.tiˈɣa]
• IPA^(key): (Balearic) [iɱ.vəs.tiˈɣa]
• IPA^(key): (Valencia) [iɱ.ves.tiˈɣaɾ]
• IPA^(key): (Northwestern) [im.bes.tiˈɣa]

• Audio (Barcelona):

  (file)

• Rhymes: -a(ɾ)
• Hyphenation: in‧ves‧ti‧gar

Verb

investigar (first-person singular present investigo, first-person singular preterite investiguí, past participle investigat)

1. to investigate

Conjugation

    Central Catalan conjugation of investigar (first conjugation, g-gu alternation)

infinitive			investigar
gerund			investigant
past participle				masculine		feminine
		singular		investigat		investigada
		plural		investigats		investigades
person		singular			plural
		first	second	third	first	second	third
indicative		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	investigo	investigues	investiga	investiguem	investigueu	investiguen
	imperfect	investigava	investigaves	investigava	investigàvem	investigàveu	investigaven
	future	investigaré	investigaràs	investigarà	investigarem	investigareu	investigaran
	preterite	investiguí	investigares	investigà	investigàrem	investigàreu	investigaren
	conditional	investigaria	investigaries	investigaria	investigaríem	investigaríeu	investigarien
subjunctive		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	investigui	investiguis	investigui	investiguem	investigueu	investiguin
	imperfect	investigués	investiguessis	investigués	investiguéssim	investiguéssiu	investiguessin
imperative		—	tu	vostè	nosaltres	vosaltres vós	vostès
	affirmative	—	investiga	investigui	investiguem	investigueu	investiguin
	negative (no)	—	no investiguis	no investigui	no investiguem	no investigueu	no investiguin

Related terms

• investigació
• investigador

Further reading

• “investigar”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
• “investigar”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026
• “investigar” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• Alcover, Antoni Maria; Moll, Francesc de Borja (1963), “investigar”, in Diccionari català-valencià-balear (in Catalan)

Galician

Etymology

Learned borrowing from Latin investīgō.

Pronunciation

 

• IPA^(key): /imbestiˈɡaɾ/ [im.bes̺.t̪iˈɣ̞ɑɾ]

• IPA^(key): (standard) /imbestiˈɡaɾ/ [im.bes̺.t̪iˈɣ̞ɑɾ]
• IPA^(key): (gheada) /imbestiˈħaɾ/ [im.bes̺.t̪iˈħɑɾ]

• Rhymes: -aɾ
• Hyphenation: in‧ves‧ti‧gar

Verb

investigar (first-person singular present investigo, first-person singular preterite investiguei, past participle investigado)

1. to investigate

Conjugation

    Conjugation of investigar (g-gu alternation)

	Singular			Plural
	First-person (eu)	Second-person (ti)	Third-person (el / ela / Vde.)	First-person (nós)	Second-person (vós)	Third-person (eles / elas / Vdes.)
Infinitive
Impersonal	investigar
Personal	investigar	investigares	investigar	investigarmos	investigardes	investigaren
Gerund
	investigando
Past participle
Masculine	investigado			investigados
Feminine	investigada			investigadas
Indicative
Present	investigo	investigas	investiga	investigamos	investigades	investigan
Imperfect	investigaba	investigabas	investigaba	investigabamos	investigabades	investigaban
Preterite	investiguei	investigaches	investigou	investigamos	investigastes	investigaron
Pluperfect	investigara	investigaras	investigara	investigaramos	investigarades	investigaran
Future	investigarei	investigarás	investigará	investigaremos	investigaredes	investigarán
Conditional	investigaría	investigarías	investigaría	investigariamos	investigariades	investigarían
Subjunctive
Present	investigue	investigues	investigue	investiguemos	investiguedes	investiguen
Imperfect	investigase	investigases	investigase	investigásemos	investigásedes	investigasen
Future	investigar	investigares	investigar	investigarmos	investigardes	investigaren
Imperative
Affirmative		investiga	investigue	investiguemos	investigade	investiguen
Negative (non)		non investigues	non investigue	non investiguemos	non investiguedes	non investiguen

    Reintegrated conjugation of investigar (g-gu alternation) (See Appendix:Reintegrationism)

	Singular			Plural
	First-person (eu)	Second-person (ti / tu)	Third-person (ele / ela / você)	First-person (nós)	Second-person (vós)	Third-person (eles / elas / vocês)
Infinitive
Impersonal	investigar
Personal	investigar	investigares	investigar	investigarmos	investigardes	investigarem
Gerund
	investigando
Past participle
Masculine	investigado			investigados
Feminine	investigada			investigadas
Indicative
Present	investigo	investigas	investiga	investigamos	investigades, investigais	investigam
Imperfect	investigava	investigavas	investigava	investigávamos	investigávades, investigáveis, investigávais1	investigavam
Preterite	investiguei	investigaste, investigache1	investigou	investigamos	investigastes	investigárom, investigaram
Pluperfect	investigara	investigaras	investigara	investigáramos	investigárades, investigáreis, investigárais1	investigaram
Future	investigarei	investigarás	investigará	investigaremos	investigaredes, investigareis	investigarám, investigarão
Conditional	investigaria	investigarias	investigaria	investigaríamos	investigaríades, investigaríeis, investigaríais1	investigariam
Subjunctive
Present	investigue	investigues	investigue	investiguemos	investiguedes, investigueis	investiguem
Imperfect	investigasse	investigasses	investigasse	investigássemos	investigássedes, investigásseis	investigassem
Future	investigar	investigares	investigar	investigarmos	investigardes	investigarem
Imperative
Affirmative		investiga	investigue	investiguemos	investigade, investigai	investiguem
Negative (nom)		nom investigues	nom investigue	nom investiguemos	nom investiguedes, nom investigueis	nom investiguem

¹Less recommended.

Related terms

• investigación
• investigador

Further reading

• “investigar”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2026
• “investigar”, in Dicionário Estraviz de galego (in Galician), 2014–2026

Ladino

Etymology

From Latin investīgō.

Verb

investigar

1. to investigate

Related terms

• investigador
• investigasion

Portuguese

Etymology

Borrowed from Latin investīgāre.

Pronunciation

 

• (Brazil) IPA^(key): /ĩ.ves.t͡ʃiˈɡa(ʁ)/ [ĩ.ves.t͡ʃiˈɡa(h)]

• (Brazil) IPA^(key): /ĩ.ves.t͡ʃiˈɡa(ʁ)/ [ĩ.ves.t͡ʃiˈɡa(h)]
  • (São Paulo) IPA^(key): /ĩ.ves.t͡ʃiˈɡa(ɾ)/
  • (Rio de Janeiro) IPA^(key): /ĩ.veʃ.t͡ʃiˈɡa(ʁ)/ [ĩ.veʃ.t͡ʃiˈɡa(χ)]
  • (Caipira) IPA^(key): /ĩ.ves.t͡ʃiˈɡa(ɻ)/

 

• (Portugal) IPA^(key): /ĩ.vɨʃ.tiˈɡaɾ/ [ĩ.vɨʃ.tiˈɣaɾ]

• (Portugal) IPA^(key): /ĩ.vɨʃ.tiˈɡaɾ/ [ĩ.vɨʃ.tiˈɣaɾ]
  • (Northern Portugal) IPA^(key): /ĩ.bɨʃ.tiˈɡaɾ/ [ĩ.bɨʃ.tiˈɣaɾ]
  • (Southern Portugal) IPA^(key): /ĩ.vɨʃ.tiˈɡa.ɾi/

• Audio (Portugal (Porto)):

  (file)

• Hyphenation: in‧ves‧ti‧gar

Verb

investigar (first-person singular present investigo, first-person singular preterite investiguei, past participle investigado)

1. to research
2. to investigate

Conjugation

    Conjugation of investigar (g-gu alternation) (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	investigar
Personal	investigar	investigares	investigar	investigarmos	investigardes	investigarem
Gerund
	investigando
Past participle
Masculine	investigado			investigados
Feminine	investigada			investigadas
Indicative
Present	investigo	investigas	investiga	investigamos	investigais	investigam
Imperfect	investigava	investigavas	investigava	investigávamos	investigáveis	investigavam
Preterite	investiguei	investigaste	investigou	investigamos1, investigámos2	investigastes	investigaram
Pluperfect	investigara	investigaras	investigara	investigáramos	investigáreis	investigaram
Future	investigarei	investigarás	investigará	investigaremos	investigareis	investigarão
Conditional	investigaria	investigarias	investigaria	investigaríamos	investigaríeis	investigariam
Subjunctive
Present	investigue	investigues	investigue	investiguemos	investigueis	investiguem
Imperfect	investigasse	investigasses	investigasse	investigássemos	investigásseis	investigassem
Future	investigar	investigares	investigar	investigarmos	investigardes	investigarem
Imperative
Affirmative		investiga	investigue	investiguemos	investigai	investiguem
Negative (não)		não investigues	não investigue	não investiguemos	não investigueis	não investiguem

¹Brazilian Portuguese.
²European Portuguese.

Related terms

• investigação
• investigador

Further reading

• “investigar”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Spanish

Etymology

From Latin investīgāre.

Pronunciation

• IPA^(key): /imbestiˈɡaɾ/ [ĩm.bes.t̪iˈɣ̞aɾ]
• Rhymes: -aɾ
• Syllabification: in‧ves‧ti‧gar

Verb

investigar (first-person singular present investigo, first-person singular preterite investigué, past participle investigado)

1. to investigate, to research

   Synonyms: indagar, pesquisar, averiguar

Conjugation

    Conjugation of investigar (g-gu alternation) (See Appendix:Spanish verbs)

infinitive			investigar
gerund			investigando
past participle				masculine		feminine
		singular		investigado		investigada
		plural		investigados		investigadas
		singular			plural
		1st person	2nd person	3rd person	1st person	2nd person	3rd person
indicative		yo	tú vos	él/ella/ello usted	nosotros nosotras	vosotros vosotras	ellos/ellas ustedes
	present	investigo	investigastú investigásvos	investiga	investigamos	investigáis	investigan
	imperfect	investigaba	investigabas	investigaba	investigábamos	investigabais	investigaban
	preterite	investigué	investigaste	investigó	investigamos	investigasteis	investigaron
	future	investigaré	investigarás	investigará	investigaremos	investigaréis	investigarán
	conditional	investigaría	investigarías	investigaría	investigaríamos	investigaríais	investigarían
subjunctive		yo	tú vos	él/ella/ello usted	nosotros nosotras	vosotros vosotras	ellos/ellas ustedes
	present	investigue	investiguestú investiguésvos2	investigue	investiguemos	investiguéis	investiguen
	imperfect (ra)	investigara	investigaras	investigara	investigáramos	investigarais	investigaran
	imperfect (se)	investigase	investigases	investigase	investigásemos	investigaseis	investigasen
	future1	investigare	investigares	investigare	investigáremos	investigareis	investigaren
imperative		—	tú vos	usted	nosotros nosotras	vosotros vosotras	ustedes
	affirmative		investigatú investigávos	investigue	investiguemos	investigad	investiguen
	negative		no investigues	no investigue	no investiguemos	no investiguéis	no investiguen

¹Rare; now chiefly used in legal language.
²Argentine and Uruguayan voseo prefers the tuteo-form for the present subjunctive.

    Selected combined forms of investigar (g-gu alternation)

These forms are generated automatically and may not actually be used. Pronoun usage varies by region.

		singular			plural
		1st person	2nd person	3rd person	1st person	2nd person	3rd person
with infinitive investigar	dative	investigarme	investigarte	investigarle, investigarse	investigarnos	investigaros	investigarles, investigarse
	accusative	investigarme	investigarte	investigarlo, investigarla, investigarse	investigarnos	investigaros	investigarlos, investigarlas, investigarse
with gerund investigando	dative	investigándome	investigándote	investigándole, investigándose	investigándonos	investigándoos	investigándoles, investigándose
	accusative	investigándome	investigándote	investigándolo, investigándola, investigándose	investigándonos	investigándoos	investigándolos, investigándolas, investigándose
with informal second-person singular tuteo imperative investiga	dative	investígame	investígate	investígale	investíganos	not used	investígales
	accusative	investígame	investígate	investígalo, investígala	investíganos	not used	investígalos, investígalas
with informal second-person singular voseo imperative investigá	dative	investigame	investigate	investigale	investiganos	not used	investigales
	accusative	investigame	investigate	investigalo, investigala	investiganos	not used	investigalos, investigalas
with formal second-person singular imperative investigue	dative	investígueme	not used	investíguele, investíguese	investíguenos	not used	investígueles
	accusative	investígueme	not used	investíguelo, investíguela, investíguese	investíguenos	not used	investíguelos, investíguelas
with first-person plural imperative investiguemos	dative	not used	investiguémoste	investiguémosle	investiguémonos	investiguémoos	investiguémosles
	accusative	not used	investiguémoste	investiguémoslo, investiguémosla	investiguémonos	investiguémoos	investiguémoslos, investiguémoslas
with informal second-person plural imperative investigad	dative	investigadme	not used	investigadle	investigadnos	investigaos	investigadles
	accusative	investigadme	not used	investigadlo, investigadla	investigadnos	investigaos	investigadlos, investigadlas
with formal second-person plural imperative investiguen	dative	investíguenme	not used	investíguenle	investíguennos	not used	investíguenles, investíguense
	accusative	investíguenme	not used	investíguenlo, investíguenla	investíguennos	not used	investíguenlos, investíguenlas, investíguense

Related terms

• investigación
• investigador

Further reading

• “investigar”, 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