d-dot ddddd do-do doddy dodoo doodo doody dooty doout dotoo dotto dotty doufu douyu doyou duddo duddy dudou duffy dutty dyott foody foofy footy foudy fouty fu-fu fuddu fuddy fuffy fuudo odttf odudu offof offoy offto ofoto ofyou ooooo ototo otuyo outdo outof outto to-do toddy toffo toffy toto- totoo totty toyou ttttt tudou tuffy tufty tuotu tutoy tutto tutty tyofu ufofu ututo uuuuu y-o-u ydout yo-yo yooff yotto youdo youdu youff youft