UNEVERSIBLE

be bi el en er es in is li ne nu re si un us

bee bel ben bes bin bis bun bur bus eel els ens ere ern ers eve ins ire lee lei les leu lev lib lie lin lis luv neb nee nib nil nub nus reb ree rei res rev rib rin rub rue run see sei sel sen ser sib sin sir sri sub sue sun uns urb urn use vee vie vis

been beer bees bels bene bens bier bile bine bins birl bise blin blue blur bree bren brie brin bris buns burl burn burs eels else erne erns esne even ever eves evil ires isle leer lees leis lens libs lien lier lies lieu line lins lire live lube lues lune lure luvs nebs neve nevi nibs nils nubs nurl rebs reel rees rein reis revs ribs riel rile rins rise rive rube rubs rues ruin rule rune runs ruse seel seen seer sene sere sine sire slub slue slur snib snub suer sure unbe urbs urns user veer vees veil vein verb vibe vier vies vile vine virl vise