<span class="searchmatch">chistabas</span> second-person singular imperfect indicative of chistar...
<span class="searchmatch">chistaba</span> first/third-person singular imperfect indicative of chistar...
chistastú chistásvos chista chistamos chistáis chistan imperfect <span class="searchmatch">chistaba</span> <span class="searchmatch">chistabas</span> <span class="searchmatch">chistaba</span> chistábamos chistabais chistaban preterite chisté chistaste chistó...