-tree d-dot d-rod ddddd dedde dedee deder dedur dedut deede deefe deeff deere defed defeo defer defet deffe deffo defoe defot deore deoro derde dered dero- derre derro derue deter detoo detre dette detuo detur deure deut- deuto do-do dodoo dodro doerr dofor doodo doore doote doout dordt dored doree doret dorff dorot dorre dorte dorud doted doter dotoo dotto doude douer doufe doufu doure douro doute drdre dredd drede dreed dreff dreft dreof drere drode drofe droff drood droof drote drott droue drout drude dtour duddo duded duder dudou duere duerr duete dueto duett dufur dured duree durer duret durre durte durtu dutte e-dee e-otd edder eddoe eddre edeo- edere edfor edoor edott edred eeeee eefde eerde ef-tu efere efetf effed effer effet efore efter efuru efutu eofor eorre erdor erdre erdut erede erere erfde erode erodr eroor erore eroto erred error errtu erte erter etete etoro etour etree etter etude eturu eufod euro- eurre fedde fedee feder fedor fedto feeor feere fefor feode feoff feood ferde fered feret ferr- ferre ferro ferte feted feter feto- fetor fette feued feuer feute fodor foord foore foote ford- forde fordo fore- foreo foret forro forte forto forud forur fotte fotur foude fouee fouet fourd foure fouro frede fredo freed freer freet frere frett freud freur frodo froed frood froot frore frote froud frude frute fruto ftord ftrtt fu-fu fudde fuddu fuero furde furo- furor furud futur fuudo o-fer odder oddur odeto odeur odore odour odttf odudu odure oduro offed offer offof offre offto ofoto ofour ofter oo-er ooooo order ordet ordre ordro oredo oreed oreo- orere orero orfeo orfeu orfoe orfor orodo oroer orout orret orter ortet ortoo oruro orutu otere otero ototo otour otter ottur oture ouder ouedo ouert ouoro ourde oure- outdo outed outer outof outre outro outto redde reder redor redot redur reede reefe reeft reere refed refer refet reffe reffo refut reord rerde rere- reree reret reted retee reter retro rette retto reuer reuet reute ro-ro rodde roded rodef rodeo roder rodor roero roffe rofor roode roodu rooer roofe rooft roore roote rooue rorer roted roter roto- rotor rotot rotte rotto roude rouer rouet roufe roure route routt ruder ruede ruere ruete ruffe ruffo rufo- rurde ruter rutte ruutu tedef teder teerd tefe teodo teret tereu teror terre terro tert- teruo teter tetr- tetro tette teuto to-do toder todor toeof toerr toeto tofet toffo tofor tofte toode tooed toord toore torde tordu tored toreo toret torre torro torte torto tortu torud torue toted toter toto- totoe totoo totte tourd toure touro toute treed treer treet trefe treff trere trete trett treut trode troee trofe troff troft trood trott troue trout trude trudo trued truer truff truro trute ttttt tuder tudor tudou tudre tudur tuero tuffe tufte tuotu turet turot turre turro turtu turut tutee tuteo tutor tutte tutto tuuru udder udert ufere ufofu uouee urdee uredo ureo- urour urter urutu uter- utero utro- utror utter uttur uturu ututo uuuuu