5 letter words:
besot7,
boets7,
4 letter words:
best6,
bets6,
boet6,
bots6,
obes6,
stob6,
toes4,
tose4,
3 letter words:
bes5,
bet5,
bos5,
bot5,
obe5,
obs5,
sob5,
est3,
oes3,
ose3,
set3,
sot3,
tes3,
toe3,
2 letter words:
be4,
bo4,
ob4,
es2,
et2,
oe2,
os2,
so2,
st2,
te2,
to2,