UNDEVELOPABLE

ab ad ae al an ba be bo de do ed el en la lo na ne no nu od oe on op pa pe un up

abo ado alb ale all alp and ane ape apo ave avo bad bal ban bap bed bee bel ben boa bod bop bud bun dab dal dan dap deb dee del den dev doe dol don dub due dun duo dup eau eel eld ell end eon eve lab lad lap lav lea led lee leu lev lob lop luv nab nae nap neb nee nob nod nub oba obe oda ode old ole one ope oud ova pad pal pan pea ped pee pen pod pol pub pud pul pun udo upo van vau vee voe

abed able aeon alee aloe aped apod auld bade bald bale ball band bane baud bead bean beau bedu been beep bell bend bene blae bled blue bode bola bold bole boll bond bone bull buna bund dale daub deal dean deep dele dell dene deva dole doll dona done dopa dope dove dual duel dull dune dupe eave ebon elan enol epee even lade land lane laud lave lead leal lean leap lend leno leud leva levo load loan lobe lode lone lope loud loup love lube lude luna lune nabe nape nave neap need neep neve node noel nope nova nude null odea olea olla opal oped open oval oven pale pall pane pave peal pean peed peel peen pele pend peon plan plea pleb pled plod pole poll pond pone pula pule pull puna udon ulan ulna ulva unbe unde undo updo upon uvea vale vane veal veep vela veld vena vend vole