ok, the sentence is
"vErE spErO tE eA quA dEbEbis dIligentiA hoc opus factUrum" with the capitalized vowels being the ones that have macrons over them
So I understand it to mean
I truly hope that you are going to do this work.....eA quA dEbEbis dIligentiA
with this diligence which you owe?
eA dIligentiA makes sense to me as the ablative of manner, but what i do not understand is quA dEbEbis
it seems like it is a subordinate clause introduced by a relative pronoun, but why is quA ablative, and why is dEbEbis future indicative? I thought that verbs in subordinate clauses in indirect statements took the subjunctive, and i do not believe that I recall anything about debeo taking the ablative...
its adapted from pliny's letter #38 to trajan, though i'm not translating the work, its just a homework sentence