sur- surc sure surn surp surr surs surt suru sus- suse susp suss sust susu sute sutu suus sux- suxe suxt tccc tccu tcep tcnn tctc tcts tecr tecs tect teec teen teer tees teet tenc tene tenn tenp tens tent tenu tepe tepp tepu ter- terc tere tern terp terr ters teru tesc tese tesp tess test tete tetr tets tett tetu tetx teut text tncc tnes tnsp tnts tnut tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree tren tres tret treu trex trpc trpe trpn trpp trps trst trtc trte trtr truc true trun trus trut truu trux tscc tscp tsec tsen tses tset tspn tsps tspt tsse tssr tsst tstc tsts tsun tsup ttcn ttcp tten tter ttss tttt tucc tuen tuer tues tuet tunc tune tunn tuns tunu tupe tups tupu turc ture turn turp turr turs turt turu tusc tuss tust tute tuts tutt tutu tuxs txcn txen txtr u-rp uccp uces ucrc ucsc ucst ucsu ucut uers uesn uess uext uncc unce uncp uncs unct unec unee unen uner unes unne unns unpc unps unrs uns- unsc unst unte unts unus unut upcs upen upne upnp uppc uppe uppp uppu upsc upse upup ure- ures uret urex urne urns urre urse urss ursu urte urts urun urup urur urus urut uscc usce uscs usee usen user uses uset usnc usnr usnu uspc uspp usps ussc usse ussr usss usst ussu ustc uste ustp usts usun usus utec utep uter utes utne utsc uttu uucp uuen uuuu uxue uxus xces xeer xen- xene xenn xenu xer- xers xert xeus xexe xnee xnet xpcc xper xrep xsun xsup xtep xtsr xurs xuxu xxxx