lēgātī ad Caesarem grātulātum convēnērunt, envoys came to Caesar to congratulate him.
a. The Supine in -um may take an Object; as,—
pācem petītum ōrātōrēs Rōmam mittunt, they send envoys to Rome to ask for peace.
b. Note the phrase:—
dō (collocō) fīliam nūptum, I give my daughter in marriage.
2. The Supine in -ū is used as an Ablative of Specification with facilis, difficilis, incrēdibilis, jūcundus, optimus, etc.; also with fās est, nefās est, opus est; as,—
haec rēs est facilis cognitū, this thing is easy to learn;
hōc est optimum factū, this is best to do.
a. Only a few Supines in -ū are in common use, chiefly audītū, cognitū, dictū, factū, vīsū.
b. The Supine in -ū never takes an Object.