<span class="searchmatch">rubefierem</span> first-person singular imperfect passive subjunctive of rubefaciō...
rubefīam rubefīās rubefīat rubefīāmus rubefīātis rubefīant imperfect <span class="searchmatch">rubefierem</span> rubefierēs rubefieret rubefierēmus rubefierētis rubefierent perfect rubefactus...