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Definition 2025

vacilar ‎(first-person singular present indicative vacilo, past participle vacilado)

(intransitive) to vacillate (to sway unsteadily from one side to the other)
(intransitive) to vacillate (to swing from one course of action or opinion to another)
(informal) to make a mistake or a wrong choice

Conjugation of the Portuguese -ar verb vacilar

	Singular			Plural
Notes:^[edit] This is a regular verb of the -ar group. Verbs with this conjugation include: amar, cantar, gritar, marchar, mostrar, nadar, parar, participar, retirar, separar, viajar.
	First-person (eu)	Second-person (tu)	Third-person (ele / ela / você)	First-person (nós)	Second-person (vós)	Third-person (eles / elas / vocês)
Infinitive
Impersonal	vacilar
Personal	vacilar	vacilares	vacilar	vacilarmos	vacilardes	vacilarem
Gerund
	vacilando
Past participle
Masculine	vacilado			vacilados
Feminine	vacilada			vaciladas
Indicative
Present	vacilo	vacilas	vacila	vacilamos	vacilais	vacilam
Imperfect	vacilava	vacilavas	vacilava	vacilávamos	vaciláveis	vacilavam
Preterite	vacilei	vacilaste	vacilou	vacilamos vacilámos	vacilastes	vacilaram
Pluperfect	vacilara	vacilaras	vacilara	vaciláramos	vaciláreis	vacilaram
Future	vacilarei	vacilarás	vacilará	vacilaremos	vacilareis	vacilarão
Conditional
	vacilaria	vacilarias	vacilaria	vacilaríamos	vacilaríeis	vacilariam
Subjunctive
Present	vacile	vaciles	vacile	vacilemos	vacileis	vacilem
Imperfect	vacilasse	vacilasses	vacilasse	vacilássemos	vacilásseis	vacilassem
Future	vacilar	vacilares	vacilar	vacilarmos	vacilardes	vacilarem
Imperative
Affirmative	-	vacila	vacile	vacilemos	vacilai	vacilem
Negative (não)	-	vaciles	vacile	vacilemos	vacileis	vacilem

vacilar ‎(first-person singular present vacilo, first-person singular preterite vacilé, past participle vacilado)

Conjugation of vacilar (See Appendix:Spanish verbs)^{edit data}

¹Argentine and Uruguayan voseo prefers the tú form for the present subjunctive.