UNDERFORM

de do ed ef em en er fe me mo mu ne no nu od oe of om on or re um un

def den doe dom don dor due dun duo emu end eon ern err fed fem fen fer feu foe fon for fou fro fud fun fur med men mod mon mor mud mun nod nom nor ode one ore oud our red ref rem rod roe rom rue rum run udo urd urn

demo derm doer dome done dore dorm dorr doum dour drum dune dure durn duro durr enuf euro fend feod fern feud fond ford fore form four froe from fume fund mend meno menu meou mode more morn moue muon mure murr nerd neum node nome norm nude nurd omen omer redo rend rode roue rude rued ruer rune udon unde undo