-ase a-ak a-be aaaa aaab aaae aaar aaas aaba aabb aaea aaes aaka aake aara aare aars aasa aase aass abaa abab abae abak abar abas abb- abba abbb abbe abbr abbs abee aber abes abra abrs abs- absa abse abss aeas aebs aeer aeka aer- aera aers aess akaa akae akar akas akee aker akes akka akr- akra akre aksa arab arae arak arar aras arba arbe arbs area aree arek ares arka arke arks arr- arra arre arrk arrr arrs ars- arsa arse arsk asaa asab asae asak asar asas asba asea asee asek aser ases aska aske askr asks asra asrs assa asse assk assr asss baaa baak baar baas baba babb babe babr babs baek baer baes bak- baka bake bakr baks bar- bara barb bare bark barr bars basa base bask bass bbas bbbb bbbs bbeb beak bear beas beba bebb bebe beeb beek beer bees beka beke beks bera bere berk berr bers bes- besa bese besk bess brab brae brak bras brea breb bree brek brer bres brka brkb brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsra bsse eaba eara earb eare ears easa ease ebba ebbr ebbs eber ebes ebsa eeea eeee eees eeka eeke eeks eera eers eese eesk eka- ekab ekeb ekek eker ekes ekka eras erba erbb erbe ereb erer eres erke erks erra erre errs ersa erse esab esar esas esba esbs esea esee esek eser eses eska eske esks esra essa esse kaaa kaab kaak kaar kaas kaba kabb kabe kabr kaer kaes kaka kake kakk kaks kara karb kare kark karr kars kas- kasa kasb kase kask kasr kass kbaa kbab kbae kbak kbar kbas kbba kbbb kbbe kbbk kbbr kbbs kbeb kbee kbek kber kbes kbkb kbkk kbkr kbra kbrb kbre kbrk kbsa kbsb kbsk kbsr kbss kea- keak kear keas keba kebb kebe kebr keek keer kees keka kekb keke keks ker- kera kerb kere kerk kerr kers kesa kesb kesk kesr kess kkaa kkar kkba kkbb kkbe kkbr kkbs kkea kkkk kkrb kkre kkrk kkrr kkrs kksa kkse kksr kkss krab krae krak krar kras krba krbb krbe krbk krbr krea kreb kree krek kres krka krke krkk krkr krks krrb krre krrk krrr krrs krsa krse krsk krsr krss ksab ksak ksar ksas ksba ksbr ksbs ksea ksee ksek kser kska kskb kske kskk kskr ksks ksra ksrb ksrr ksrs kssa ksse kssr ksss raab raak raas raba rabb rabe rabk rabs raer raes raka rake rakk rara rarb rare rark rars rasa rase rask rass rbbb rbbr rbbs rbss rea- reae reak rear reas reba rebb rebe rebk rebs reeb reek rees reka reke reks rera rere rers resa rese ress rkss rras rrrr rsaa rsee rsre rssa saab saae saak saar saas saba sabb sabe sabr sabs saeb saek saer saes saka sakb sake sakk saks sara sare sark sarr sars sasa sase sask sass sbaa sbar sbas sbbs sber sbrk sbsa sbse se-e se-k se-s seaa seab seak sear seas seba sebe sebs seea seeb seek seer sees seka seke sekk sera serb sere serk serr sers sesa sese sess skab skar skee sker skes skra skss sras sreb sres ssaa ssab ssas ssbr ssee sses ssra ssrs sssa sssb ssss