Future and Conditional Irregular Stems

être (to be)

ser-

faire (to do)

fer-

aller (to go)

ir-

avoir (to have)

aur-

savoir (to know)

saur-

tenir (to hold)

tiendr-

venir (to come)

viendr-

vouloir (to want)

voudr-

acquérir (to buy)

acquérr-

courir (to run)

courr-

envoyer (to send)

enverr-

mourir (to die)

mourr-

pouvoir (to be able to)

pourr-

voir (to see)

verr-

devoir (to have to)

devr-

recevoir (to receive)

recevr-

décevoir (to decide)

décevr-

pleuvoir (to train)

pleuvr-