TUBERIFORM

be bi bo ef em er et fe if it me mi mo mu oe of oi om or re ti to um ut

bet bio bit bot bro brr bum bur but eft emu err fem fer fet feu fib fie fir fit fob foe for fou fro fub fur ire met mib mir mob mor mot mut obe obi oft orb ore ort our out reb ref rei rem ret rib rif rim rob roe rom rot rub rue rum rut tie toe tom tor tub tui urb ute

berm bier biro birr bite bore bort bout brie brim brio brit brut bumf burr bute emir emit etui euro fire firm forb fore form fort four fret frit froe from fume item meou mire mite more mort mote moue mure murr mute obit omer omit reft reif rife rift rime riot rite robe rote roti roue rout rube ruer term tier time tire tiro tofu tomb tome tore tori torr tour tref trim trio true tube turf umbo