<span class="searchmatch">grouilla</span> third-person singular past historic of grouiller...
<span class="searchmatch">grouillas</span> second-person singular past historic of grouiller...
je/ grouillaient /ɡʁu.jɛ/ past historic2 grouillai /ɡʁu.je/ <span class="searchmatch">grouillas</span> /ɡʁu.ja/ <span class="searchmatch">grouilla</span> /ɡʁu.ja/ grouillâmes /ɡʁu.jam/ grouillâtes /ɡʁu.jat/ grouillèrent...