<span class="searchmatch">concesionaba</span> first/third-person singular imperfect indicative of concesionar...
<span class="searchmatch">concesionabas</span> second-person singular imperfect indicative of concesionar...
concesiona concesionamos concesionáis concesionan imperfect <span class="searchmatch">concesionaba</span> <span class="searchmatch">concesionabas</span> <span class="searchmatch">concesionaba</span> concesionábamos concesionabais concesionaban preterite...