IRREGULAR VERBS

[494.] sum, am, be

Principal Partssum, esse, fuī, futūrus
Pres. Stem es- Perf. Stem fu- Part. Stem fut-
Indicative
Present
SINGULARPLURAL
sum, I amsumus, we are
es, thou artestis, you are
est, he (she, it) issunt, they are
Imperfect
eram, I waserāmus, we were
erās, thou wasterātis, you were
erat, he waserant, they were
Future
erō, I shall beerimus, we shall be
eris, thou wilt beeritis, you will be
erit, he will beerunt, they will be
Perfect
fuī, I have been, wasfuimus, we have been, were
fuistī, thou hast been, wastfuistis, you have been, were
fuit, he has been, wasfuērunt, fuēre, they have been,were
Pluperfect
fueram, I had beenfuerāmus, we had been
fuerās, thou hadst beenfuerātis, you had been
fuerat, he had beenfuerant, they had been
Future Perfect
fuerō, I shall have beenfuerimus, we shall have been
fueris, thou wilt have beenfueritis, you will have been
fuerit, he will have beenfuerint, they will have been
Subjunctive
PresentImperfect
SINGULARPLURALSINGULARPLURAL
simsīmusessemessēmus
sīssītisessēsessētis
sitsintessetessent
PerfectPluperfect
fuerimfuerimusfuissemfuissēmus
fuerisfueritisfuissēsfuissētis
fueritfuerintfuissetfuissent
Imperative
PRESENTFUTURE
2d Pers. Sing. es, be thou2d Pers. Sing. es, thou shalt be
2d Pers. Plur. este, be ye3d Pers. Sing. es, he shall be

2d Pers. Plur. estōte, ye shall be

3d Pers. Plur. suntō, they shall be

InfinitiveParticiple
Pres. esse, to be
Perf. fuisse, to have been

Fut. futūrus, -a, -um esse or fore,
to be about to be

futūrus, -a, -um, about to be

[495.] possum, be able, can

Principal Partspossum, posse, potuī, ——
IndicativeSubjunctive
SINGULARPLURALSINGULARPLURAL
Pres.possumpos´sumuspossimpossī´mus
potespotes´tispossīspossī´tis
potestpossuntpossitpossint
Impf.poterampoterāmuspossempossē´mus
Fut.poterōpoterimus————
Perf.potuīpotuimuspotuerimpotuerimus
Plup.potuerampotuerāmuspotuissempotuissēmus
F. P.potuerōpotuerimus————
Infinitive
Pres. possePerf. potuisse
Participle
Pres. potens, gen. -entis, (adjective)powerful

[496.] prōsum, benefit

Principal Partsprōsum, prōdesse, prōfuī, prōfutūrus
Pres. Stem prōdes- Perf. Stem prōfu- Part. Stem prōfut-
IndicativeSubjunctive
SINGULARPLURALSINGULARPLURAL
Pres.prōsumprō´sumusprōsimprōsī´mus
prōdesprōdes´tisprōsīsprōsī´tis
prōdestprōsuntprōsitprōsint
Impf.prōderamprōderāmusprōdessemprodessē´mus
Fut.prōderōprōderimus————
Perf.prōfuīprōfuimusprōfuerimprōfuerimus
Plup.prōfueramprōfuerāmusprōfuissemprōfuissēmus
F. P.prōfuerōprōfuerimus————
Imperative
Pres. 2d Pers. prōdes, prōdesteFut. 2d Pers. prōdestō, prōdestōte
Infinitive
Pres. prōdessePerf. prōfuisseFut. prōfutūrus, -a, -um esse
Future Participle prōfutūrus, -a, -um

[497.]

Principal
Parts
volō, velle, voluī, ——, be willing, will, wish nōlō, nōlle, nōluī, ——, be unwilling, will not mālō, mālle, māluī, ——, be more willing, prefer

Nōlō and mālō are compounds of volō. Nōlō is for ne (not) + volō, and mālō for (from magis, more) + volō. The second person vīs is from a different root.