<span class="searchmatch">combibissent</span> third-person plural pluperfect active subjunctive of combibō...
pluperfect combibissem combibissēs combibisset combibissēmus combibissētis <span class="searchmatch">combibissent</span> passive present combibar combibāris, combibāre combibātur combibāmur...