<span class="searchmatch">catēchūmenum</span> accusative singular of catēchūmenus...
catēchūmenī catēchūmenōrum dative catēchūmenō catēchūmenīs accusative <span class="searchmatch">catēchūmenum</span> catēchūmenōs ablative catēchūmenō catēchūmenīs vocative catēchūmene catēchūmenī...