<span class="searchmatch">challengeai</span> first-person singular past historic of challenger...
<span class="searchmatch">challengeais</span> first/second-person singular imperfect indicative of challenger...
/(t)ʃa.lɛn(.d)ʒe/ challengent /(t)ʃa.lɛn(d)ʒ/ imperfect <span class="searchmatch">challengeais</span> /(t)ʃa.lɛn(.d)ʒɛ/ <span class="searchmatch">challengeais</span> /(t)ʃa.lɛn(.d)ʒɛ/ challengeait /(t)ʃa.lɛn(.d)ʒɛ/ challengions...