-ene -yne bbbb bbeb bcbc bccc bcec bcnu bcuc bebb bebe beby becu beeb been beey bene benn benu beye beyn bubb bube bubu bucc buce bucu buen bueu bunb bune bunn bunu buyu byce byen bync byun cbbc cbcc cbce cbcn cbcu cbec cbee ccbc ccbn cccb cccc cccu ccee ccnb ccnc ccne ccnu ccny ccuc cebu cec- cece ceeb ceec cen- cene ceny ceyu cnbc cub- cubb cube cuby cucc cuce cucn cune cuny cuy- cybb cybc cyc- cycb cycc cyen cyn- cyne cyun cyy- cyyc cyyn ebbc ebby ebcc eben ecbc ecbe eccb eccc ecce ecne eeby eeee eeny enb- enbn enby ence ency enee eney ennc enne ennu enny enue enye eubc euny eyeb eyec eyen eyey eyne nbbc nbcc ncbc nccc nccn nccu ncec ncee ncen ncnc ncue nebb nebe nebn nebu necc nece necy neeb neen nene nenu neuc neue neun neuu neuy neye neyn nnnn nubc nube nuby nuce nucu nuee nunc nune nunn nuny nycc nyce nycy nyen nyne nyny ubbe ucbc unbe uncc unce uneb unec unee unen unne uuen uuuu uuyn yben yccc ycee ye-u yeen yenc yene yeue yeun yeye ynce ynne yubu yuce yuen yune yuny yuye yuyu yyyy