NoDictionaries   Text notes for  
... qui severitatem decernentium impediturus fuerit, moderationem non prohibere: statuerent...

"[Nero] rescripsit...qui impediturus fuerit": "fuerit," perf. subj. in a relative clause in o.o. where strict sequence of tenses would require "fuisset" after a main verb in an historic tense. Cf. the prior note for the periphrastic form expressing a condition contrary-to-fact embedded in o.o.