Futur Simple: Irregular Stems

While regular verbs use their infinitive as the future stem, many common French verbs have irregular future stems. The good news: the endings are always the same (-ai, -as, -a, -ons, -ez, -ont). You just need to memorise the stems.

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The Most Important Irregular Stems

Infinitive	Meaning	Irregular Stem	je form
être	to be	ser-	je serai
avoir	to have	aur-	j'aurai
aller	to go	ir-	j'irai
faire	to do/make	fer-	je ferai
venir	to come	viendr-	je viendrai
tenir	to hold	tiendr-	je tiendrai
voir	to see	verr-	je verrai
envoyer	to send	enverr-	j'enverrai
pouvoir	to be able	pourr-	je pourrai
vouloir	to want	voudr-	je voudrai
devoir	to have to	devr-	je devrai
savoir	to know	saur-	je saurai
courir	to run	courr-	je courrai
mourir	to die	mourr-	je mourrai
recevoir	to receive	recevr-	je recevrai
falloir	to be necessary	faudr-	il faudra
pleuvoir	to rain	pleuvr-	il pleuvra
valoir	to be worth	vaudr-	il vaudra

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Full Conjugation: Key Verbs

Être (to be) — Stem: ser-

Subject	Futur Simple	English
je	serai	I will be
tu	seras	you will be
il/elle/on	sera	he/she will be
nous	serons	we will be
vous	serez	you will be
ils/elles	seront	they will be

Avoir (to have) — Stem: aur-

Subject	Futur Simple	English
je	aurai	I will have
tu	auras	you will have
il/elle/on	aura	he/she will have
nous	aurons	we will have
vous	aurez	you will have
ils/elles	auront	they will have

Aller (to go) — Stem: ir-

Subject	Futur Simple	English
je	irai	I will go
tu	iras	you will go
il/elle/on	ira	he/she will go
nous	irons	we will go
vous	irez	you will go
ils/elles	iront	they will go

Faire (to do/make) — Stem: fer-

Subject	Futur Simple	English
je	ferai	I will do/make
tu	feras	you will do/make
il/elle/on	fera	he/she will do/make
nous	ferons	we will do/make
vous	ferez	you will do/make
ils/elles	feront	they will do/make

Venir (to come) — Stem: viendr-

Subject	Futur Simple
je	viendrai
tu	viendras
il/elle/on	viendra
nous	viendrons
vous	viendrez
ils/elles	viendront

Pouvoir (to be able to) — Stem: pourr-

Subject	Futur Simple
je	pourrai
tu	pourras
il/elle/on	pourra
nous	pourrons
vous	pourrez
ils/elles	pourront

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Patterns to Recognise

Double-r stems (verbs that add an extra r)