UNEXPENDABLE

ab ad ae al an ax ba be de ed el en ex la na ne nu pa pe un up xu

alb ale alp and ane ape axe bad bal ban bap bed bee bel ben bud bun dab dal dan dap deb dee del den dex dub due dun dup eau eel eld end lab lad lap lax lea led lee leu lex lux nab nae nan nap neb nee nub nun pad pal pan pax pea ped pee pen pub pud pul pun

abed able alee aped apex auld axed axel axle bade bald bale band bane baud bead bean beau bedu been beep bend bene blae bled blue buna bund bunn dale daub deal dean deep dele dene dual duel dune dupe eaux elan epee exed lade land lane laud lead lean leap lend leud lube lude luna lune luxe nabe nape neap need neep nene nude pale pane peal pean peed peel peen pele pend plan plea pleb pled plex pula pule puna ulan ulna unbe unde