4 letter words:
beef9,
bhel9,
buhl9,
feeb9,
flub9,
hebe9,
feel7,
flee7,
flue7,
fuel7,
heel7,
hele7,
hule7,
blee6,
blue6,
lube6,
3 letter words:
feh9,
fub8,
hub8,
elf6,
fee6,
feu6,
flu6,
hue6,
bee5,
bel5,
eel3,
lee3,
leu3,
ule3,
2 letter words:
ef5,
eh5,
fe5,
he5,
uh5,
be4,
ee2,
el2,