[732.] The verb is accompanied by some nouns, which are conveniently, though not quite accurately, reckoned parts of the verb; they are:
Three Infinitives, Present Active and Passive, and Perfect Active, sometimes called the Infinitive Mood. For the future active and passive and the perfect passive, compound forms are used.
The Gerund and the Gerundive.
Two Supines.
Three Participles, Present and Future Active, and Perfect Passive.
[PRINCIPAL PARTS.]
[733.] The several verb stems can readily be found, when once the principal parts are known; these are given in the dictionary.
[734.] The Principal Parts of a verb are the Present Indicative Active, Present Infinitive Active, Perfect Indicative Active, and Perfect Participle: as,
| Pres. Indic. | Pres. Infin. | Perf. Indic. | Perf. Part. |
|---|---|---|---|
| regō, rule | regere | rēxī | rēctus |
| laudō, praise | laudāre | laudāvī | laudātus |
| moneō, advise | monēre | monuī | monitus |
| audiō, hear | audīre | audīvī | auditus |
[735.] The Principal Parts of deponents are the Present Indicative, Present Infinitive, and Perfect Participle: as,