* car: c into qu
* acercarse, arrancar, atacar, buscar, certificar, chocar, colocar, convocar, equivocarse, evocar, explicar, fabricar, indicar, marcar, masticar, pescar, picar, platicar, practicar, predicar, publicar, revocar, sacar. secar, sofocar, tocar, trocar
* gar: g into gu
* agregar, apagar, cargar, colgar, despegar, entregar, fregar, jugar, juzgar, llegar, navegar, negar, obligar, pagar, pegar, plegar, regar, rogar
* zar: z into c
* abrazar, alcanzar, almorzar, alzar, amenazar, avanzar, bautizar, bostezar, calzar, caracterizar, cazar, comenzar, cruzar, desperezarse, empezar, forzar, gozar, lanzar, organizar, realizar, rezar, sollozar, tropezar, utalizar