-ene -one eeee eefe eefn eero efen efeo efon efor enee eneo ener enne ennu eno- enoe enon enue enuf enur eone eore eren erer erne erno eroe eron eroo erre erro erur euer eur- eure euro feen feer fefe feff fefo fene fenn feof feon fere fern fero ferr feru ffee ffff ffrr ffun fnuf foer fofo fone fono foof foon for- fore forn foro forr foun four free fren freo froe fron frou frue frun fuff fufu fune funf fuor fur- fure furn furo furr neef neen neer nefe neff nene neno nenu neo- neon neoo nere nerf nero nerr neru neue neuf neun neuo neur neuu nfer nfff nfon nnnn noer non- none nonn nono nonu noo- noon nooo noor nor- nore norf norn noro norr noun nour nren nron nuee nuer nuff nune nunn nuno nuon nure nurn nurr nuru o-eo oen- oeno oere oeuf ofen ofer off- offe offo offr offu ofno ofor ofre one- onee oneo oner onne onno onon onor onue onur ooer ooff oone oooo oore ore- oren oreo orer orfe orff orfu orne orno oro- oroe orof oron oror orro ouen ouer oufe ouff oun- oune our- oure ourn ouro ouu- reef reen refe reff refn refr refu rene renn reno renu reof reou rere rero reru reue reuf reuu rfef roen roer rofe roff rofo rone rono roof roon roor rore roro roru roue rouf roun rrrr rrun ruen ruer rufe ruff rufo rune runf runn runo rure ruro ruru ruun ueno ufer uffe unee unef unen uner unne unno unon unrf unro uofo uone uor- uore ure- urfe urff urne uro- uroo urre urun urur uuen uuno uuuu