The Twelve Irregular Future Stems
Master the dropping, replacing, and rebuilding families of Spanish irregular future stems plus their shared endings.
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Questions Covered in This Set
10 cards to master
What are the six future tense endings (all verbs)?
-é, -ás, -á, -emos, -éis, -án — every form except nosotros carries a written accent.
Which verbs form the 'Dropper' family (vowel deleted)?
haber → habr-, poder → podr-, querer → querr-, saber → sabr-, caber → cabr- (all -er verbs losing the e).
Which verbs form the 'Replacer' family (vowel → d)?
poner → pondr-, tener → tendr-, venir → vendr-, salir → saldr-, valer → valdr-.
Which two verbs are the 'Rebuilders'?
decir → dir- (diré, dirás...) and hacer → har- (haré, harás...). Not derivable from rule — drill them.
Why does querer double the r (querr-)?
One r belongs to the stem (quer-) and one comes from the -rer infinitive ending, giving querré, querrás, etc.
How do compound verbs behave in the future?
They inherit the parent's stem: mantener → mantendrás, suponer → supondrá, deshacer → desharé, predecir → predirá.
Which two -decir compounds are REGULAR in the future?
bendecir (bendeciré) and maldecir (maldeciré) — unlike decir itself.
What is the future of satisfacer?
Satisfaré — it follows hacer's rebuilt stem (satisfar-).
Conjugate: tener, ellos / saber, yo / salir, ella
tendrán / sabré / saldrá.
What is the impersonal future of haber, and what does it mean?
Habrá — 'there will be' (Habrá mucha gente).
