5 letter words:
betel7,
bluet7,
butle7,
butte7,
elute5,
tutee5,
4 letter words:
beet6,
belt6,
blet6,
blue6,
bute6,
butt6,
lube6,
tube6,
leet4,
lute4,
teel4,
tele4,
tule4,
3 letter words:
bee5,
bel5,
bet5,
but5,
tub5,
eel3,
lee3,
let3,
leu3,
tee3,
tel3,
tet3,
tut3,
ute3,
2 letter words:
be4,
el2,
et2,
ut2,