Present tense + Imperfect tense
POSSUM, POSSE
PRESENT TENSE IMPERFECT TENSE
possum I can, I am able poteram I could, I was able
potes you can, you are able poteras you could, you were able
potest s/he, it can, is able poterat s/he, it could, was able
possumus we can, we are able poteramus we could, we were able
potestis you (pl.) can, you (pl.) are able poteratis you (pl.) could, you (pl.) were able
possunt they can, they are able poterant they could, they were able
VOLO, VELLE
PRESENT TENSE IMPERFECT TENSE
volo I want volebam I wanted, I was willing
vis you want volebas you wanted, you were willing
vult s/he, it wants volebat s/he, it wanted, was willing
volumus we want volebamus we wanted, we were willing
vultis you (pl.) want volebatis you (pl.) wanted, were willing
volunt they want volebant they wanted, they were willing