4 letter words:
beef9,
feeb9,
feme9,
beep8,
fine7,
neif7,
been6,
bene6,
bine6,
mien6,
mine6,
neem6,
neep6,
peen6,
pein6,
pine6,
3 letter words:
fem8,
fib8,
imp7,
mib7,
fee6,
fen6,
fie6,
fin6,
bee5,
ben5,
bin5,
eme5,
men5,
neb5,
nib5,
nim5,
nip5,
pee5,
pen5,
pie5,
pin5,
nee3,
2 letter words:
ef5,
fe5,
if5,
be4,
bi4,
em4,
me4,
mi4,
pe4,
pi4,
en2,
in2,
ne2,