bbbee bcell bebel becel becue becut beebe beeft beele beete beeut beffe belce belec belee belef belet bellb belle belue belut betee betel betle bett- bette betul beule beute bleet bleft blete bleue bluet bluff bluft btc-e bubbe buble bucet buell bufet buffe bufle bulb- bull- bulle bulul bulut butec butle butte butut c-tec cbeff cbeft cblue ccccc ccell ccett cclef cebec ceele cefcu celeb cell- celle celte cette cfu-e clcff cleef cleet clefe cleft clete clett clubb clue- clufe cluff clute clutt ctcfl cttee ctulu cubbe cubeb cubel cubub cufeu cuffe culbe culet culle cullu cutcu cutee cutle cuuel ebbet ebble ebell eblul ebull eccle ectfe eeeee ef-tu efetf effet eftel efutu elect eleet elele eleut ellel ellet ellul elulu elute etete ettel ettle euell fclef febel feble feele felce felet felle felte feltt fetel fette feule feute flect fleet flete flett fluce fluff flute ft-lb ftlee fu-fu fulbe fulle fullf lebce lebec lebel lebet lecce leece leell lefeu leffe leftb leful leleu lelle letbe lette leuc- leuce lubbe luble lucee lucet lufte lulec lulle lulte luluc lulul lute- lutte tbtbt tbutt tcell tebet tectb tecul teele teell tefe telce tele- telec teleu tell- telle tetel tetle tette tlell tlett ttttt tubul tucet tuctu tuelf tuell tuelt tuffe tufte tulce tulet tulle tutee tutel tutle tutte u-cee ubble uccel uccle ucell uclue uelfe ullet ululu utube uuuuu