-ene -one eeee eefe eefn eero eevn efen efeo efon efor en-v enee eneo ener enne eno- enoe enon eone eore eren erer erev erne erno eroe eron eroo erre erro erve even ever evoe evon evoo evre feen feer fefe feff fefo fene fenn feof feon fere fern fero ferr ferv feve fevr ffee ffff ffrr foer fofo fone fono foof foon for- fore forn foro forr fove fr-v free fren freo froe fron neef neen neer neev nefe neff nene neno neo- neon neoo nere nerf nero nerr nerv neve nevo nfer nfff nfon nnnn noer non- none nonn nono noo- noon nooo noor noov nor- nore norf norn noro norr norv nov- nove novo nren nron nvfr o-eo oen- oeno oere ofen ofer off- offe offo offr ofno ofor ofre one- onee oneo oner onne onno onon onor ooer ooff oone oooo oore ore- oren oreo orer orfe orff orne orno oro- oroe orof oron oror orro orve orvr ovee oven over ovo- ovon ovoo ovre reef reen reev refe reff refn refr rene renn reno reof rere rero reve revo rfef roen roer roev rofe roff rofo rone rono roof roon roor rore roro rove rovo rrrr rver veen veer ven- vene venn veno veor ver- vere vern vero veve vevo vfor voer voff vofr vone vonn voor vor- vore voro vref vreo vrnn vron vver vvvv