compostar

Catalan

Etymology

From compost +‎ -ar.

Pronunciation

• IPA^(key): (Northern, Central) [kum.pusˈta]
• IPA^(key): (Balearic, Northwestern) [kom.posˈta]
• IPA^(key): (Valencia) [kom.posˈtaɾ]

Verb

compostar (first-person singular present composto, first-person singular preterite compostí, past participle compostat); root stress: (Northern) /o̞/; (Balearic, Central, Northwestern, Valencia) /ɔ/

1. to compost (to produce compost)

Conjugation

    Central Catalan conjugation of compostar (first conjugation)

infinitive			compostar
gerund			compostant
past participle				masculine		feminine
		singular		compostat		compostada
		plural		compostats		compostades
person		singular			plural
		first	second	third	first	second	third
indicative		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	composto	compostes	composta	compostem	composteu	composten
	imperfect	compostava	compostaves	compostava	compostàvem	compostàveu	compostaven
	future	compostaré	compostaràs	compostarà	compostarem	compostareu	compostaran
	preterite	compostí	compostares	compostà	compostàrem	compostàreu	compostaren
	conditional	compostaria	compostaries	compostaria	compostaríem	compostaríeu	compostarien
subjunctive		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	composti	compostis	composti	compostem	composteu	compostin
	imperfect	compostés	compostessis	compostés	compostéssim	compostéssiu	compostessin
imperative		—	tu	vostè	nosaltres	vosaltres vós	vostès
	affirmative	—	composta	composti	compostem	composteu	compostin
	negative (no)	—	no compostis	no composti	no compostem	no composteu	no compostin

Related terms

• compost

Further reading

• “compostar”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026
• “compostar”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026
• “compostar” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• Alcover, Antoni Maria; Moll, Francesc de Borja (1963), “compostar”, in Diccionari català-valencià-balear (in Catalan)

Galician

Etymology

From compost + -ar.

Verb

compostar (first-person singular present composto, first-person singular preterite compostei, past participle compostado)

1. to compost (to produce compost)

Conjugation

    Conjugation of compostar

	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	compostar
Personal	compostar	compostares	compostar	compostarmos	compostardes	compostaren
Gerund
	compostando
Past participle
Masculine	compostado			compostados
Feminine	compostada			compostadas
Indicative
Present	composto	compostas	composta	compostamos	compostades	compostan
Imperfect	compostaba	compostabas	compostaba	compostabamos	compostabades	compostaban
Preterite	compostei	compostaches	compostou	compostamos	compostastes	compostaron
Pluperfect	compostara	compostaras	compostara	compostaramos	compostarades	compostaran
Future	compostarei	compostarás	compostará	compostaremos	compostaredes	compostarán
Conditional	compostaría	compostarías	compostaría	compostariamos	compostariades	compostarían
Subjunctive
Present	composte	compostes	composte	compostemos	compostedes	composten
Imperfect	compostase	compostases	compostase	compostásemos	compostásedes	compostasen
Future	compostar	compostares	compostar	compostarmos	compostardes	compostaren
Imperative
Affirmative		composta	composte	compostemos	compostade	composten
Negative (non)		non compostes	non composte	non compostemos	non compostedes	non composten

    Reintegrated conjugation of compostar (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	compostar
Personal	compostar	compostares	compostar	compostarmos	compostardes	compostarem
Gerund
	compostando
Past participle
Masculine	compostado			compostados
Feminine	compostada			compostadas
Indicative
Present	composto	compostas	composta	compostamos	compostades, compostais	compostam
Imperfect	compostava	compostavas	compostava	compostávamos	compostávades, compostáveis, compostávais1	compostavam
Preterite	compostei	compostaste, compostache1	compostou	compostamos	compostastes	compostárom, compostaram
Pluperfect	compostara	compostaras	compostara	compostáramos	compostárades, compostáreis, compostárais1	compostaram
Future	compostarei	compostarás	compostará	compostaremos	compostaredes, compostareis	compostarám, compostarão
Conditional	compostaria	compostarias	compostaria	compostaríamos	compostaríades, compostaríeis, compostaríais1	compostariam
Subjunctive
Present	composte	compostes	composte	compostemos	compostedes, composteis	compostem
Imperfect	compostasse	compostasses	compostasse	compostássemos	compostássedes, compostásseis	compostassem
Future	compostar	compostares	compostar	compostarmos	compostardes	compostarem
Imperative
Affirmative		composta	composte	compostemos	compostade, compostai	compostem
Negative (nom)		nom compostes	nom composte	nom compostemos	nom compostedes, nom composteis	nom compostem

¹Less recommended.

Related terms

• compost, composta

Further reading

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

Portuguese

Etymology

From composto + -ar.

Pronunciation

 

• (Brazil) IPA^(key): /kõ.posˈta(ʁ)/ [kõ.posˈta(h)]

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

 

• (Portugal) IPA^(key): /kõ.puʃˈtaɾ/

• (Portugal) IPA^(key): /kõ.puʃˈtaɾ/
  • (Southern Portugal) IPA^(key): /kõ.puʃˈta.ɾi/

Verb

compostar (first-person singular present composto, first-person singular preterite compostei, past participle compostado)

1. to compost (to produce compost)

Conjugation

    Conjugation of compostar (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	compostar
Personal	compostar	compostares	compostar	compostarmos	compostardes	compostarem
Gerund
	compostando
Past participle
Masculine	compostado			compostados
Feminine	compostada			compostadas
Indicative
Present	composto	compostas	composta	compostamos	compostais	compostam
Imperfect	compostava	compostavas	compostava	compostávamos	compostáveis	compostavam
Preterite	compostei	compostaste	compostou	compostamos1, compostámos2	compostastes	compostaram
Pluperfect	compostara	compostaras	compostara	compostáramos	compostáreis	compostaram
Future	compostarei	compostarás	compostará	compostaremos	compostareis	compostarão
Conditional	compostaria	compostarias	compostaria	compostaríamos	compostaríeis	compostariam
Subjunctive
Present	composte	compostes	composte	compostemos	composteis	compostem
Imperfect	compostasse	compostasses	compostasse	compostássemos	compostásseis	compostassem
Future	compostar	compostares	compostar	compostarmos	compostardes	compostarem
Imperative
Affirmative		composta	composte	compostemos	compostai	compostem
Negative (não)		não compostes	não composte	não compostemos	não composteis	não compostem

¹Brazilian Portuguese.
²European Portuguese.

Further reading

• “compostar”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “compostar”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
• “compostar”, in Dicionário Infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026

Spanish

Etymology

Etymology tree

Latin compositus

French compostder.

Spanish compost

Proto-Indo-European *-h₂

Proto-Indo-European *-éh₂

Proto-Indo-European *-yéti

Proto-Indo-European *-eh₂yéti

Proto-Indo-European *-h₂tiinflu.

Proto-Italic *-ājō

Proto-Italic *-āō

Latin -āre

Old Spanish -ar

Spanish -ar

Spanish compostar

From compost + -ar.

Pronunciation

• IPA^(key): /komposˈtaɾ/ [kõm.posˈt̪aɾ]
• Rhymes: -aɾ
• Syllabification: com‧pos‧tar

Verb

compostar (first-person singular present composto, first-person singular preterite composté, past participle compostado)

1. to compost (to produce compost)

Conjugation

    Conjugation of compostar (See Appendix:Spanish verbs)

infinitive			compostar
gerund			compostando
past participle				masculine		feminine
		singular		compostado		compostada
		plural		compostados		compostadas
		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	composto	compostastú compostásvos	composta	compostamos	compostáis	compostan
	imperfect	compostaba	compostabas	compostaba	compostábamos	compostabais	compostaban
	preterite	composté	compostaste	compostó	compostamos	compostasteis	compostaron
	future	compostaré	compostarás	compostará	compostaremos	compostaréis	compostarán
	conditional	compostaría	compostarías	compostaría	compostaríamos	compostaríais	compostarían
subjunctive		yo	tú vos	él/ella/ello usted	nosotros nosotras	vosotros vosotras	ellos/ellas ustedes
	present	composte	compostestú compostésvos2	composte	compostemos	compostéis	composten
	imperfect (ra)	compostara	compostaras	compostara	compostáramos	compostarais	compostaran
	imperfect (se)	compostase	compostases	compostase	compostásemos	compostaseis	compostasen
	future1	compostare	compostares	compostare	compostáremos	compostareis	compostaren
imperative		—	tú vos	usted	nosotros nosotras	vosotros vosotras	ustedes
	affirmative		compostatú compostávos	composte	compostemos	compostad	composten
	negative		no compostes	no composte	no compostemos	no compostéis	no composten

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

Related terms

• compost
• composta

Further reading

• “compostar”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), 24th edition, Royal Spanish Academy [Spanish: Real Academia Española], 30 October 2026