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Tense guide
Futuro perfecto del subjuntivo (Future Perfect Subjunctive)

Language: Spanish
Tense:
Person:

Introduction

This verb form is used to talk about an action that will have been completed at a future point in time. It is very formal and extremely rare in modern spoken Spanish. You will mostly see it in legal documents or very old literature. It is useful to recognize but not necessary to use in conversation.

The most common place to find this verb form is in legal or highly formal statements. It is used to describe a future action that must be completed for a certain consequence to apply. It often follows phrases like `el que` (the one who) or `quien` (whoever).

El que hubiere cometido un delito será sancionado.
(The one who will have committed a crime will be penalized.)
Quien hubiere incumplido las normas deberá pagar una multa.
(Whoever will have broken the rules must pay a fine.)
Se entregará el premio a la persona que hubiere terminado el trabajo primero.
(The prize will be given to the person who will have finished the work first.)
Aquellos que no hubieren presentado la solicitud para el viernes no serán considerados.
(Those who will not have submitted the application by Friday will not be considered.)

In formal or literary contexts, this form can also show that one future action will have finished before another future action begins. This usage is often introduced by words like `cuando` (when) or `tan pronto como` (as soon as).

Cuando todos los invitados hubieren llegado, cerraremos las puertas.
(When all the guests will have arrived, we will close the doors.)
Tan pronto como usted hubiere firmado, el acuerdo será válido.
(As soon as you will have signed, the agreement will be valid.)

Be careful: This verb form is almost never used in daily conversation. In modern Spanish, other verb structures are used to express these ideas. It is a feature of very formal, written, or historical language.

Further explanations

Conjugation patterns