I almost missed this:
Ad mortem te, Catilina, duci iussu consulis iam pridem oportebat, in te conferri pestem quam tu in nos omnis iam diu machinaris.
“You, Catiline, ought to have been led to your death by order of the consul long ago; you ought to have the evil that you so long plotted against all of us conferred upon you.”
Why the present infinitive “duci” to refer to past (i.e. “pridem”) action? Does it have something to do with “oportebat” being imperfect, and would that throw the “te conferri” into the past?
Ed: and “machinaris” is present. Would that mean “that you so long have plotted against us, and plot still”?
Ed2: I think I might have it. “Oportebat” is the main verb and the other presents are in the present because they’re going on at the same time as the main verb. Kind of a sequence-of-tenses thing (that is, that tenses are relative). I’ve come across this before, I think, but it stands out particularly in this sentence, which is totally unlike English, I guess.