bbbbbb becure bedded bedder beduru beebee beedee beerde berbee berber berede berere berrer berube beurre bredde breded breder breede breere breuer brubru bruder brurde bruree bubber bububu budded budder burbur burcer burder burdur burred burree burrer c-cube ceecee ceruce creede crudde cruded cruder crured cubbed cubber cubube cucube cucurb cuddee curbed curber curded curred currer de-err debdeb debece debere deburr decede deceue decred decree decure deduce deeded deedee deeder derere derrer derure deubre deuced dreder druber dubbed dubber dubdub dudder duerer eburru ecured educed eebree erbree rebbec rebeuc rebred recbcd recced recede receed recrue recuer recurb recure redbed redbud redded redder reddur redere redred reduce redure reeded reeder reuere rubbed rubbee rubber rudder rudrur ubered udburu urdeur