filfil filli- fillol filoli filour firfol firlot fitfor fitful fitoor fitout fittit flitto flori- florio florit fluor- fluori fluoro flurri foliot foofoo foofur footit forlii forlot forout forrit forrot fortul fotiou foufou fourof fourou fourto frifot fritto friuli frollo frooti frootl fruti- frutti fulfil fullof fultot furfur furour furrfu futuro iiooio illfit illful illlit iloilo irrour ittiri ittro- lifful lifull lilliu liluri liotti litout littor lituit lloro loloru looloo loriot loturi loulou lourlo loutou loutro lufful lurulu offrir offutt oftfor oilfor oillit oofotr oooooo oriolo orloff orroli orrour ortulu ototoi ottoii ottoor ouioui outfit outfor outlit outlot outoul outour outtro rififi rititi ritto roflol rolli rollio rollot roloff rootof rotolo rotour rotout rotrou rotuli rotulo rouful routot rurutu rutour rutuli ruurlo ruutli tiff-f tillot tillou tiltil tirful tirolo tirrit tirtol titfor titiri titoff tituli to-fro to-rit toftir toitoi toluol tootoo torfou torill torito torolf toroli torori tororo torril torrit tortor tortou toruli totoro totrot tottoi tou-fu touitt tourou toutou toutuo trillo triolo triour trito- tritor troili trolli trollt trotro truful truiff truitt trulli trullo tufoli tuiuti tullio tuotuo turtur tururu tutill tutour tuttul tuttut uitoto ulloor ulutiu utroor uutool