INFUNDIBULIFORM

bi bo do id if in li lo mi mo mu no nu od of oi om on or um un

bid bin bio bod bro bud bum bun bur dib dif dim din dol dom don dor dub dui dun duo fib fid fil fin fir flu fob fon for fou fro fub fud fun fur iff inn ion lib lid lin lob lum mib mid mil mir mob mod mol mon mor mud mun nib nil nim nob nod nom nor nub nun obi off oil old orb oud our rib rid rif rim rin rob rod rom rub rum run udo ulu urb urd urn

bidi biff bind bird birl biro blin blur boff boil bold bond born brim brin brio buff bumf bund bunn burd burl burn diff dino diol dirl doff dorm doum dour drib drub drum duff dumb durn duro fido film filo find fino firm firn flir flub foil foin fold fond forb ford form foul four from fund furl idol imid info inro irid iron lido limb limn limo linn lino lion liri loid loin lord lorn loud lour luff midi miff mild milo mind mini miri modi moil mold morn muff muni muon nidi nodi noil noir nori norm noun numb nurd nurl riff rind roil rolf ruff ruin udon umbo undo