<span class="searchmatch">participaches</span> second-person singular preterite indicative of participar...
<span class="searchmatch">participache</span> (reintegrationist norm, less recommended) second-person singular preterite indicative of participar...
participaba participabamos participabades participaban Preterite participei <span class="searchmatch">participaches</span> participou participamos participastes participaron Pluperfect participara...