Use the present for current states, habits and actions. The subject can be omitted when the verb makes it clear.
Vosotros is informal plural you in Spain. Ustedes uses the ellos/ellas form and is the usual plural you in Latin America.
decidoI decide (present)
decidesyou decide (present)
decidehe/she decides (present)
decidimoswe decide (present)
decidísyou all (vosotros) decide (present)
decidenthey decide (present)
Decidir in the preterite tense
Use the preterite for a completed event in the past, viewed as a whole.
decidíI decided (preterite)
decidisteyou decided (preterite)
decidióhe/she decided (preterite)
decidimoswe decided (preterite)
decidisteisyou all (vosotros) decided (preterite)
decidieronthey decided (preterite)
Decidir in the imperfect tense
Use the imperfect for past habits, ongoing situations and background descriptions, without marking their endpoint.
decidíaI used to decide (imperfect)
decidíasyou used to decide (imperfect)
decidíahe/she used to decide (imperfect)
decidíamoswe used to decide (imperfect)
decidíaisyou all (vosotros) used to decide (imperfect)
decidíanthey used to decide (imperfect)
Decidir in the future tense
Use the simple future for what will happen. Spanish also uses this tense for a guess about the present.
decidiréI will decide (future)
decidirásyou will decide (future)
decidiráhe/she will decide (future)
decidiremoswe will decide (future)
decidiréisyou all (vosotros) will decide (future)
decidiránthey will decide (future)
Decidir in the conditional tense
Use the conditional for what would happen, a polite request or a hypothetical situation.
decidiríaI would decide (conditional)
decidiríasyou would decide (conditional)
decidiríahe/she would decide (conditional)
decidiríamoswe would decide (conditional)
decidiríaisyou all (vosotros) would decide (conditional)
decidiríanthey would decide (conditional)
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Decidir conjugation chart
All six persons. Blue, bold forms differ from regular endings, including spelling changes that preserve pronunciation.
Person
Present
Preterite
Imperfect
Future
Conditional
yo
decido
decidí
decidía
decidiré
decidiría
tú
decides
decidiste
decidías
decidirás
decidirías
él / ella / usted
decide
decidió
decidía
decidirá
decidiría
nosotros / nosotras
decidimos
decidimos
decidíamos
decidiremos
decidiríamos
vosotros / vosotras
decidís
decidisteis
decidíais
decidiréis
decidiríais
ellos / ellas / ustedes
deciden
decidieron
decidían
decidirán
decidirían
Decidir in the present tense
Person
Spanish
English
yo
decido
I decide
tú
decides
you decide
él / ella / usted
decide
he/she decides
nosotros / nosotras
decidimos
we decide
vosotros / vosotras
decidís
you all (vosotros) decide
ellos / ellas / ustedes
deciden
they decide
Decidir in the preterite tense
Person
Spanish
English
yo
decidí
I decided
tú
decidiste
you decided
él / ella / usted
decidió
he/she decided
nosotros / nosotras
decidimos
we decided
vosotros / vosotras
decidisteis
you all (vosotros) decided
ellos / ellas / ustedes
decidieron
they decided
Decidir in the imperfect tense
Person
Spanish
English
yo
decidía
I used to decide
tú
decidías
you used to decide
él / ella / usted
decidía
he/she used to decide
nosotros / nosotras
decidíamos
we used to decide
vosotros / vosotras
decidíais
you all (vosotros) used to decide
ellos / ellas / ustedes
decidían
they used to decide
Decidir in the future tense
Person
Spanish
English
yo
decidiré
I will decide
tú
decidirás
you will decide
él / ella / usted
decidirá
he/she will decide
nosotros / nosotras
decidiremos
we will decide
vosotros / vosotras
decidiréis
you all (vosotros) will decide
ellos / ellas / ustedes
decidirán
they will decide
Decidir in the conditional tense
Person
Spanish
English
yo
decidiría
I would decide
tú
decidirías
you would decide
él / ella / usted
decidiría
he/she would decide
nosotros / nosotras
decidiríamos
we would decide
vosotros / vosotras
decidiríais
you all (vosotros) would decide
ellos / ellas / ustedes
decidirían
they would decide
Is decidir irregular?
Decidir follows the regular ir pattern in these five tenses.
Questions about decidir
How do you conjugate decidir in the present?
The present forms are decido, decides, decide, decidimos, decidís, deciden, in the order yo, tú, él/ella/usted, nosotros, vosotros and ellos/ellas/ustedes.
What is the preterite of decidir?
decidí, decidiste, decidió, decidimos, decidisteis, decidieron. For example, decidí means “I decided”.
Is decidir irregular?
Decidir follows the regular ir pattern in these five tenses.
What is the difference between the preterite and imperfect of decidir?
The preterite (decidí) presents a completed event; the imperfect (decidía) gives a past habit or background situation. The English glosses are “I decided” and “I used to decide”, but context determines the best translation.
What are the future and conditional of decidir?
The yo forms are decidiré (“I will decide”) and decidiría (“I would decide”). The full charts above include every person.