eeeee eerie eevee eever efere eferi effer effie effio efore efrei eieio eirie eivor eofor eorre erere ereve erier eriff erio- eroor erore error ervie eveof evere everi evero everr eveve evoir evoor feeor feere fefor feier feoff ferie ferio ferr- ferre ferri ferro fever fevre fieee fieri fiero fifer fifie fiore fiori firee firei firer firie firre fiveo fiver foir- foire foore fore- foreo forio forro forvo freei freer freir frere frevo frier frore frovi ieiri ierei ieroe iever if-- ifere ifive iiiee iiiii ioffe ioooi ioooo iorio irori ivore ivver ivvvo o-fer oeiro ofeve offer offie offir offof offre ofori oo-er ooioo ooooo oorie oovoo oreo- oreoi orere orero orfei orfeo orfoe orfor oroer over- overo oviri ovivo reefe reere reeve refer reffe reffo reiff reive rere- reree rerir rever revie revir ri-fi riefe rieve rifer riife ririe river ro-ro roero roffe rofor rooer roofe roore roove rorer rover rovio rvivr veere veeri veeve veire veive verie verio verre verri verve veveo vever vieri vievo viiri virei vireo virii viro- virre virve viver vivi- vivir vivre voere voire voore vorfe vorie vorre