Naturally, opus est or necesse est can also stand on its own, with the subject implied.Į.g. Id erat necesse = That was necessary/inevitable. Quod opus erit faciam = I will do what is needed. if it were expressed in full) may be represented by a neuter pronoun.Į.g. With both opus est and necesse est, a necessary 'thing' (action, event i.e. Necesse est (ut) omnes moriamur = It is necessary/inevitable that we should all die, we must all die. With an ut or ne clause or with the subjunctive alone (same meaning as with an acc.-inf. Necesse est omnes mori = It is necessary/inevitable for all to die, all must die. With an accusative and infinitive clause:Į.g. Hoc facere (nobis) necesse est = It is necessary/inevitable (for us) to do this, we must/are forced to do this. With an infinitive and, optionally, a dative:Į.g. Naves opus sunt = Ships are needed, one needs ships. Nobis igitur necesse est statim discedere. With the thing needed being a subject noun (this is somewhat rarer):Į.g. Ubi puellae ad arbores adveniunt, Cornelia, 'Misera sum,' inquit, 'quod ego et Marcus et Sextus et pater et mater Romam hodie redire paramus. Here too you can add the dative of the person who needs it. properato opus est = There is a need for it having been hurried, i.e. With the ablative of a past participle, denoting that one needs something done.Į.g. Opus est ne veniat = It's necessary that he should not come, he must not come, one (I, we, whatever makes sense in a given context) needs him not to come.

Opus est ut edam/opus est edam = It's necessary that I should eat, I need to eat. The meaning of this is the same as with an acc.-inf. With ut or ne + subjunctive, or with the subjunctive alone. Opus est me ire = It's necessary for me to go, it's necessary that I should go, I need to go. Opus est ire = It's necessary to go, one needs to go (or 'we must go' or whatever person implied in the context). With an infinitive or accusative and infinitive clause.Į.g. Auro opus est = There is a need for gold, one needs gold (we need, you need, or anyone depending on context).Īuro nobis opus est = There is for us a need for gold = We need gold. With a noun in the ablative denoting a thing needed, and the person who needs it, if mentioned, in the dative.Į.g. Here's a list of the most usual constructions.

Scribere necesse est