<span class="searchmatch">diffiniate</span> second-person plural present subjunctive of diffinire...
che essi/che esse present diffinìsca diffinìsca diffinìsca diffiniàmo <span class="searchmatch">diffiniàte</span> diffinìscano imperfect diffinìssi diffinìssi diffinìsse diffinìssimo diffinìste...