d-rod d-rok ddddd ddeok ddruk dedde dedee deder dedur deede deefe deeff deere defed defeo defer deffe deffo defoe deked dekko deore deoro derde dered derek derke dero- derre derro derue deruk deure do-do dodoo dodro doerr dofor dokdo dokuo doodo dooke dooku doore dored doree dorff dorke dorre dorud doruk doude douer doufe doufu douke doure douro drdre dredd drede dreed dreff dreof drere drode drofe droff droke drood droof drook droue drouk drude du-ku duddo duded dudek duder dudok dudou duduk duere duerr dufur duked dukeu dukku dured duree durer durok durre e-dee edder eddoe eddre edeko edeo- edere edfor edoor edred edu-k eeeee eefde eerde efere effed effer efore efuru ekeko ekker ekuku ekuru eofor eorre erdek erdor erdre erede erere erfde erkko erode erodr eroor erore erred error eruke eufod euro- eurre fedde fedee feder fedor feeor feere fefor feked feode feoff feood ferde fered ferr- ferre ferro feued feuer fodor fokke foord foore ford- forde fordo fore- foreo forro forud forur foude fouee fouke fourd foure fouro frede fredo freed freek freer freke frere freud freur frodo froed frood frore froud frude fruko fu-fu fudde fuddu fuero furde furo- furor furud fuudo k-dee k-def kedde keder kedre kedro keefe keere kefee keked kerek kerre ko-ko kodok kodre kodur koeru kofud koker kokko kokor kokou kokre kokur koord kooru korek korff korke korku koror korro korue koruk koude koudo kouer koufu koure kre-o kreef kreek kreke kreo- kreuk krodo kroke kudde kudou kudur kukko kukok kukur kurek kurku kurre kurud kuruk o-fer odder oddur odeur odore odour odudu odure oduro offed offek offer offof offre ofour okeke okere okker okkur okoro okuku okuru oo-er ooooo order ordre ordro oredo oreed oreo- orere orero orfeo orfeu orfoe orfor orodo oroer oroke oruku oruro ouder ouedo ouoro ourde oure- redde reder redor redur reede reefe reere refed refer reffe reffo rekke reord rerde rere- reree reuer ro-ro rodde roded rodef rodeo roder rodok rodor roero roffe rofor rokee roker rokke rokkk roode roodu rooer roofe rooke roore rooue rorer rorke roude rouer roufe rouke rouko roure ruder rudkk rudok ruede ruere ruffe ruffo rufo- rukke rurde udder ufere ufofu ukeke ukodo uouee urdee urduk uredo ureo- urker urour uuork uuuuu