[1754.] A final subjunctive subordinate to a perfect definite sometimes has the primary sequence, but more commonly the secondary: as,
([a.]) etiamne ad subsellia cum ferrō vēnistis, ut hīc iugulētis Sex. Rōscium? RA. 32, have you actually come to the court-room knife in hand, to cut Roscius’s throat on the spot? (b.) nē īgnōrārētis esse aliquās pācis vōbīs condiciōnēs, ad vōs vēnī, L. 21, 13, 2, I have come to you to let you know that you have some chances of peace. addūxī hominem in quō satis facere exterīs nātiōnibus possētis, V. a. pr. 2, I have brought up a man in whose person you can give satisfaction to foreign nations.
[1755.] An independent present or perfect subjunctive may be put with a main secondary tense ([1744]):
[1756.] (1.) In relative, causal, or concessive sentences: as,
cum in cēterīs colōniīs duūm virī appellentur, hī sē praetōrēs appellārī volēbant, Agr. 2, 93, though they are styled in all other colonies The Two, these men wanted to be styled praetors. quī adulēscēns nihil umquam nisi sevērissimē et gravissimē fēcerit, is eā aetāte saltāvit? D. 27, did the man who in his growing years invariably behaved with austere propriety, dance and caper round in his old age? hōc tōtō proeliō cum ab hōrā septimā ad vesperum pugnātum sit, āversum hostem vidēre nēmō potuit, 1, 26, 2, during the whole of this engagement, though the fighting went on from an hour past noon till evening, nobody could catch a glimpse of an enemy’s back.
[1757.] (2.) Often in consecutive sentences: as,
([a.]) in prōvinciā Siciliā, quam iste per triennium ita vexāvit, ut ea restituī in antīquum statum nūllō modō possit, V. a. pr. 12, in the province of Sicily, which the defendant so effectually tormented three years running that it cannot be restored at all to its original estate. priōrēs ita rēgnārunt, ut omnēs conditōrēs partium certē urbis numerentur, L. 2, 1, 2, such was the administration of the monarchs preceding, that they are all accounted founders of parts at least of Rome. (b.) The perfect subjunctive sometimes represents the time of the perfect definite: as, tantum in aerārium pecūniae invēxit, ut ūnīus imperātōris praeda fīnem attulerit tribūtōrum, Off. 2, 76, he conveyed such quantities of money into the treasury, that the plunder turned in by a single commander has put an end to tribute for good and all. eō usque sē praebēbat patientem atque impigrum, ut eum nēmō umquam in equō sedentem vīderit, V. 5, 27, he showed himself so indefatigably active that no human being has ever seen him astride a horse. Sometimes the time of the historical perfect: as, temporis tanta fuit exiguitās, ut ad galeās induendās tempus dēfuerit, 2, 21, 5, so scant was the time that they had not time to put their helmets on. hīc ita quiēvit, ut eō tempore omnī Neāpolī fuerit, Sull. 17, this man held so quiet that he staid all that time at Neapolis. In Cicero a negative subordinate perfect is not uncommon; an affirmative one is very rare. This construction is more common in Nepos, Livy, and Tacitus, and is the prevalent one in Suetonius.
[1758.] The imperfect only is used in complementary sentences with past verbs of happening, such as accidit, contigit, &c. ([1966]).
[1759.] When two consecutive subjunctives are coordinated, they usually have the same tense. Sometimes however the first is perfect and the second imperfect, or the reverse.