f-hour fogrum foofoo foofur foorth foorum forgot forhoo formo- forout forrot forth- fortum foufou fought fougou four-h fourgo fourof fourou fourth fourto froggo frough frumth furfur furour furrfu furtho furtum futuro gforth ghumot go-off go-out gofrom gogoro gohort googoo gooroo gorgor gothot gotoff gotour gotout gourou goutum gromth grooth grotto grouff grough grouth grugru gurgum gurugu guthro gutrot guttur h-hour hhgttg ho-hum hogoro hohhot hohoho hoohoo hooroo horgr hororo horror hortor hotfor hotoff hotoro hottot houtou htruth huh-uh huhhot humhot humhum hummum humour huoguo hurroo hurth hurumu huthur huthut mm-hmm moffom moffou mogoro mohoro mohout mohuhu mommur moogoo moomoo mormor mormur morogo moroto morrot mothur motmot motomu motor- motoro motour moturu mought mougth mourou mrmoto muffro muggur muggut mugumu muguru muhugu muhuhu muhurr muhuru murmur muroto muthur mutomo muttur mutufu mutuum muumuu off-go offutt oftfor ohohoh ohotmu ohtomu ohtoto oofotr oohooh oomoto oooooo oromoo orrho- orrour ortho- ortug otmoor ottoor outfor outour outtro rhogog rogoff romour roogoo roomth roomto rootof rotgut rotour rotout rotrou rottum rought routot ruhroh rumohr rumour rurutu rutour t-form t-room tfromt thgttg thoght thogur thorgh thoro- though thourt thouth thromm throut thruff thrugh thught thurgh to-fro toform togout togrog tohoro tomhog tommot tomort tomtom tomtor toohot tootoo torfou torgot torgut tororo toroth tortor tortou tortum totoro totrot tou-fu tought touhou tourou toutou toutuo troggu troght trotro trough tugrug tumour tumtum tuotuo turgor turgot turgut turmut turrum turtur tururu tutour tuttut u-form uh-huh um-hum umhofo urform urughu utouth utroor