Vertor; see devertor, praevertor, revertor, 273. III. to avenge. to use. to eat. to trust. FOURTH CONJUGATION. CLASS I. REGULAR FORMATION. 283. Principal Parts in: io, īre, īvi, ītum. 1. Perfect in ii for īvi.-V is often dropped in the ending of the Perfect; audii for audivi. See 234. 1. 2. Perfect and Supine Wanting.-Desideratives (332. III.), except esurio, -itum; nupturio, ire, īvi, and parturio, ire, ivi, want both Perf. and Sup. Also a few others: ire, CLASS II. IRREGULAR FORMATION.-Two Irregularities. 284. First Irregularity.-Perfect after the Analogy of the Second and Third Conjugations. I. Perfect in ui, as in Conjugation II. Principal Parts in: io, īre, ui, tum. II. Perfect in si (i), as in Conjugation III. Principal Parts in: io, īre, si (i), tum (sum). So compounds: advenio, convenio, devenio, invenio, obvenio, pervenio, etc. Part, oriturus.-Pres. Ind. of Conj. III., orěris, oritur. orĕrer. So compounds, but adorior follows Conj. IV. 1 From părio of Conj. III. to rise. Imp. Subj., orīrer or 2 Comp. assentio has a deponent form, assentior. See 286. 2. 3 In the Pres. Ind. and Imp. Subj., forms of Conj. III. occur. 4 Compounded of ad and sentio. See sentio, 284. II. 5 Compounded of ex and pario; ob and pario. See comperio, 284. II. IRREGULAR VERBS. 287. A few verbs which have unusual personal endings, are called by way of preeminence Irregular or Anomalous Verbs. They are Sum, edo, fero, volo, fio, eo, queo, and their compounds. 288. Sum, I am. The conjugation of sum has been already given (204.); its numerous compounds-absum,' adsum, desum, praesum,' etc.-except possum and prōsum, are conjugated in the same way. 1 Absum and praesum, like possum, have Pres. Participles, absens and praesens. PLUPERFECT. potuissěm, -issés, -isset; potuissēmus, -issētis, -issent. IMPERATIVE.-Wanting. INFINITIVE. PRES. possě. PARTICIPLE. PRES. potens (as an adjective). 1. COMPOSITION.-Possum is compounded of potis, able, and sum, to be. The parts are sometimes separated, and then potis is indeclinable: põtis sum, põtis sumus, etc. 2. IRREGULARIȚIES.—In possum observe 1) That potis drops is and that t final of the stem is assimilated before 8: possum for potsum. 2) That ƒ of the simple is dropped after t: potui for potfui. 3) That the Infin. posse and Subj. possem are shortened forms for potesse and potessem. 3. OLD AND RARE FORMS. See 204. 1 and 2. 290. Prōsum, I profit, is compounded of pro, for, and sum, to be. It inserts d when the simple verb begins with e; prōsum, prōdes, prōdest, etc. Otherwise it is conjugated like sum. 291. Edo, I eat. This verb is sometimes regular, and sometimes takes forms like those of sum which begin in es. Thus: 1. PASSIVE FORMS.-Estůr for ědětůr (Indic. Pres.) and essētůr for ěděrētŭr (Subj. Imp.) also occur. 2. FORMS IN IM for am occur in Pres. Subj.: ědím, ědis, édit, etc., for ědům, ēdās, ēdāt, etc. 3. COMPOUNDS are conjugated like the simple verb, but comedo has in Sup. comesum or comestum. essě. |