[*] 452. The Infinitive, with or without a subject accusative, may be used with est and similar verbs (1) as the Subject, (2) in Apposition with the subject, or (3) as a Predicate Nominative.1
- As Subject:—
- In Apposition with the Subject:—
- As Predicate Nominative:—
[*] Note 1.--An infinitive may be used as Direct Object in connection with a Predicate Accusative (§ 393), or as Appositive with such Direct Object:—
- istuc ipsum nōn esse cum fueris miserrimum putō; (Tusc. 1.12), for I think this very thing most wretched, not to be when one has been. [Here istuc ipsum belongs to the noun nōn esse .]
- miserārī,invidēre,gestīre,laetārī, haec omnia morbōs Graecī appellant (id. 3.7), to feel pity, envy, desire, joy,—all these things the Greeks call diseases. [Here the infinitives are in apposition with haec .]
[*] Note 2.--An Appositive or Predicate noun or adjective used with an infinitive ín any of these constructions is put in the Accusative, whether the infinitive has a subject expressed or not. Thus, “—nōn essecupidum pecūnia est” (Par. 51) , to be free from desires (not to be desirous) is money in hand. [No Subject Accusative.][*] a. The infinitive as subject is not common except with est and similar verbs. But sometimes, especially in poetry, it is used as the subject of verbs which are apparently more active in meaning:—
- “quōs omnīs eadem cupere, eadem ōdisse, eadem metuere, in ūnum coēgit ” (Iug. 31) , all of whom the fact of desiring, hating, and fearing the same things has united into one.
- ingenuās didicisse fidēliter artīs ēmollit mōrēs (Ov. P. 2.9.48), faithfully to have learned liberal arts softens the manners.
- “ posse loquī ēripitur ” (Ov. M. 2.483) , the power of speech is taken away.