Clauses of Proviso

by Sean Conner
 

General Discussion:

Clauses of proviso are subordinate clauses with subjunctive verbs that indicate the specific condition upon which the information of the main clause is dependent.  Therefore, clauses of proviso are sometimes considered to be merely a category of conditional clauses.  However, clauses of proviso express a more urgent dependency than a standard condition can, and the regular use of specific particles in introducing clauses of proviso separate the two (in theory).
 

Specifics:

Mood:

As mentioned, clauses of proviso have subjunctive verbs. Grammarians usually classify these subjunctives as either hortatory or optative in origin.  Sometimes, though not often, a hortatory subjunctive without any introductory particle will serve to express proviso.  Occasionally, a hortatory subjunctive will appear in the main clause ? this is simply coincidental (i.e., not any sort of formula) and should not be treated in a special way:  oderint, dum metuant ? "let them hate, provided that they fear."  As is the case with conditional constructions, this substitution only affects the main clause in the sentence and not the provision, or subordinate, clause.
 

Note:

Relative clauses of characteristic or result are, from time to time, classified as clauses of proviso.  This adverbial usage/translation is one taken purely from context, for, in these cases, no introductory particle need be supplied: