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198.

Sum is compounded without any change of inflection with the prepositions ab, ad, dé, in, inter, ob, prae, pró (earlier form pród), sub, super.



a. In the compound prósum (help), pró retains its original d before e:



PRINCIPAL PARTS: prósum, pródesse, prófuí, prófutúrus



INDICATIVE SUBJUNCTIVE
PRESENT prósum prósumus prósim prósímus
pródes pródestis prósís prósítis

pródest prósunt prósit prósint
IMPERFECT próderam próderámus pródessem pródessémus
FUTURE próderó próderimus - - - -
PERFECT prófuí prófuimus prófuerim prófuerimus
PLUPERFECT prófueram prófuerámus prófuissem prófuissémus
FUT. PERF. prófueró prófuerimus - - - -
IMPERATIVE PRESENT pródes, pródeste
INFINITIVE PRESENT pródesse

FUTURE prófutúrus esse

PARTICIPLE

FUTUREprófutúrus

b. Sum is also compounded with the adjective potis, or pote, able, making the verb possum (be able, can). Possum is inflected as follows: - [1][The forms potis sum, pote sum, etc. occur in early writers. Other early forms are potesse; possiem, -és, -et; poterint, potisit (for possit); potestur and possitur (used with a passive infinitive, cf. § 205. a).]



PRINCIPAL PARTS: possum, posse, potuí[2][Potuí is from an obsolete potére.]



INDICATIVE SUBJUNCTIVE

Singular Plural Singular Plural PRESENT hfil
potes potestis possís possítis hfil
IMPERFECT poteram poterámus possem possémus FUTURE hfil
PERFECT potuí potuimus potuerim potuerimus PLUPERFECT hfil
FUT. PERF. potueró potuerimus - - - -

INFINITIVE


PARTICIPLE



PRES. poténs (adjective), powerful

hfil