Grammar Guide
Verbs
Spanish Future Subjunctive

Spanish Future Subjunctive

Quick Answer

The subjunctive is one of the three moods in Spanish, the other two being the indicative (actions, events, facts) and the imperative (commands). You can find more on the differences between the subjunctive and the indicative here!

The future subjunctive (el futuro del subjuntivo ) is rarely used in modern Spanish. Instead, the present subjunctive is used in virtually all cases in which the future subjunctive would have been used historically. Nonetheless, the future subjunctive does still appear in modern times, primarily in legal documents and literary contexts, as well as a few classic refranes  (proverbs), so it’s good to be able to recognize it.

Finding the Future Subjunctive Stem

The stem for the future subjunctive is the same as that of the imperfect subjunctive, or the third person plural of the preterite (without the -ron at the end).

Preterite FormFuture Subjunctive Stem
hablaron
 
habla-
tuvieron
 
tuvie-
vieron
 
vie-

Future Subjunctive Stem Examples

InfinitiveThird Person PreteriteFuture Subjunctive Stem
caber
 
cupieron
 
cupie-
dar
 
dieron
 
die-
decir
 
dijeron
 
dije-
dormir
 
durmieron
 
durmie-
estar
 
estuvieron
 
estuvie-
haber
 
hubieron
 
hubie-
hacer
 
hicieron
 
hicie-
ir
 
fueron
 
fue-
leer
 
leyeron
 
leye-
tener
 
tuvieron
 
tuvie-
pedir
 
pidieron
 
pidie-
poder
 
pudieron
 
pudie-
poner
 
pusieron
 
pusie-
preferir
 
prefirieron
 
prefirie-
querer
 
quisieron
 
quisie-
saber
 
supieron
 
supie-
sentir
 
sintieron
 
sintie-
ser
 
fueron
 
fue-
traducir
 
tradujeron
 
traduje-
traer
 
trajeron
 
traje-

Irregular Future Subjunctive

Any verb that is irregular in the third person plural of the preterite will maintain that irregularity in the future subjunctive. (Ex. tener )

Future Subjunctive Endings

All conjugations for -ar, -er, and -ir verbs have the same future subjunctive endings:

SubjectEnding
yo-re
-res
él, ella, usted-re
nosotros-remos
vosotros-reis
ellos, ellas, ustedes-ren

The nosotros form of the future subjunctive often has a tilde.

Examples: hubiéremos , supiéremos 

Future Subjunctive Examples

Adonde fueres, haz lo que vieres.
When in Rome, do as the Romans do.
 
El que insultare a la reina será castigado.
He who insults the queen will be punished.
 
Sea lo que fuere el origen de los productos, serán gravados.
Whatever the origin of the products may be, they will be subject to taxation.
 
"Digan lo que dijeren, el escritor nace, no se hace. - Augusto Monterroso
No matter what they say, writers are born, not made. - Augusto Monterroso
 

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