-tree c-tec ccccc cccii cccli ccell ccett ccifc cciii ccitt cclef cclii ccrcl ccrel cctrl ceci- cecie cecil cecri ceele ceere ceile ceili ceirt celer celi- celic celie cell- celle celli celte cerc- cerce cerci cerec cerer ceret ceric cerie cerre certe cetic cette cfler cicer cicle ciele cieli cietc cifer cifft cifte cilec cili- cilic cille cilli circe ciric cirie ciril cirr- cirri citec citee citer citie citr- citte clcff cleef cleer cleet clefe cleft cleie cleir cleit clerc clere clete clett clie clier cliff clifi clift clire clite crece creel creer creft creil crele crell crete crice crier crile crrel ctcfl ctree ctrie ctrlc cttee e-fit eccle ecrit ectfe eeeee eeler eerie eetti efere eferi efetf effer effet effie efile efrei eftel efter eifel eiler eilet eirie eitel eiter eitri elect eleet elele eleri elfic elice eliel elife elite ellel eller ellet ellie elrec elric erect erere erice erier eriff eriic erite erte ertel erter ertil etete etile etite etree ettel etter ettie ettle fclef fecit feele feere feier feile felce felet felle felli felte feltt ferce ferel feret feric ferie ferit ferle ferr- ferre ferri ferte fetel feter feti- fetii fetir fette ffeil fieee fieri fifer fifie filer filet fili- filic fille firee firei firer firie firit firle firre fitel fitil fitit fitri fitte flect fleer fleet fleil fleir flere flert flete flett flier flire flirr flirt flite freei freel freer freet freir freit frere frett frice friel frier frile frill frite fritt ftlee ftrtt iccle ice-t iceci iceit icici icier iclei icter ictic iecee ieiri ierei iette if-- ifeel ifell ifelt ifere iffet ifill iflee ifrit ifttt iiiee iiiii iitti ilcer ileft ileri ilici ilife iliff ilift iller illit ilter ircii ircle irece irele irete iriel irill irite irrel irrit irtec itele itell itete itfet itfit itire ittel itter ittre ittti lecce lecci leece leeli leell leere leert leffe leile leill leire leite lelei lelic lelle lelli lerer lerie letil letit letre lette li-fi licet licit licli lieli liere lifei lifer liffe lifie lilet lilie lille lilli liril litel liter litic litir litre litte litti ltifr rcirc recce recet recit rect- recte recti reece reefe reeft reere reeti refel refer refet reffe refil refit reice reiff reile reill relee relet relic relie relif relit relli relte rere- reree reret reric rerir retee retel reter retie retil rette ri-fi ricci ricer riefe rieti rifer rifle riife riler rilic rille ririe rlife rtice tcell tecic teele teell tefe teffi tefli teill telce tele- telec telei teler telic telit tell- telle telli telti terce teret terif terli terre terri tert- tetel teter tetle tetr- tetri tette ti-ti ticci ticer ticle tieit tiele tieli tielt tiere tieri tiffe tifle tiler tilfi tilie tille tilli tilte tiree tirer tiret tirit tirle tirli tirtl titcr titel titer titii titil title titli titre titte titti tlell tlett treer treet trefe treff treie treif treil treit trele trere treri trete trett trice triei trier triet trife trill trit- trite tritt trlic ttttt