d-dot d-rod ddddd do-do dodon dodoo dodro dofor dondo donon donor donot donut doodo doorn doout dordt dorff dorno doron dorot dorud dotoo dotto doufu dount douro droff drood droof droon drott droun drout dtour dturn duddo dudon dudou dufur dundo dunno dunod dunun duont durno duron durtu fnord fodor fondo fondu foord ford- fordo forno forro forto forud forur foton fotur found fount fourd fouro frodo frond front frood froot frorn froud frunt fruto ftord ftrtt fu-fu fuddu fund- fundo fundu fuorn furo- furor furud futon futur fuudo ndour nduru nnooo no-do no-no nodof nodto nofor nofou nofun nofut non-u nondo nonno nonot noonu noord noort nordo noron norro nortt norun notdo notno noto- notof noton notto nourt nroff ntntd ntoro nu-nu nudur nunon nunun nuoro nurun nuton oddur odont odour odttf odudu oduro offof offon offto offun ofnod ofono oforn ofoto ofour onoff onond onont onoon onorn onoto onour onout onto- ontof ontoo ontur ooooo ordon ordro orfor ornon ornot orodo orono orout orton ortoo oruro orutu otono ototo otour ottur oudon ouoro ourno outdo outof outon outro outto ro-ro rodon rodor rofor rondo ronno ronto roodu rooft roond roto- roton rotor rotot rotto rotun round rount routt rudno ruffo rufo- rundu runo- runof runon runto ruutu t-nut tntnt to-do todor toffo tofor tondo tondu tono- tonod tonof tonto toord tordu toron torro torto tortu torud torun toto- toton totoo tourd tourn touro troff troft trond trono trood troon trott trout trudo truff truro ttttt tudor tudou tudun tudur tundu tunon tuotu turn- turno turnt turnu turon turot turro turtu turut tutor tutto tutun tuuru ufofu ufton ufund undun undur unfun unfur unnun unnur unnut unoft unoor unorn unrun unurn urour urutu utro- utror uttur uturn uturu ututo uuuuu