[*] 478. The Future Perfect denotes an action as completed in the future:—
- “ut sēmentem fēceris, ita metēs ” (De Or. 2.261) , as you sow (shall have sown), so shall you reap.
- “carmina tum melius, cum vēnerit ipse, canēmus ” (Ecl. 9.67) , then shall we sing our songs better, when he himself has come (shall have come).
- sī illīus īnsidiae clāriōrēs hāc lūce fuerint, tum dēnique obsecrābō; (Mil. 6), when the plots of that man have been shown to be as clear as daylight, then, and not till then, shall I conjure you.
- “ego certē meum officium praestiterō ” (B. G. 4.25) , I at least shall have done my duty (i.e. when the time comes to reckon up the matter, I shall be found to have done it, whatever the event).
[*] Note.--Latin is far more exact than English in distinguishing between mere future action and action completed in the future. Hence the Future Perfect is much commoner in Latin than in English. It may even be used instead of the Future, from the fondness of the Romans for representing an action as completed:—