4 letter words:
cabs8,
scab8,
abas6,
acta6,
acts6,
baas6,
bast6,
bats6,
casa6,
cast6,
cats6,
scat6,
stab6,
tabs6,
3 letter words:
cab7,
aba5,
abs5,
act5,
baa5,
bas5,
bat5,
cat5,
sab5,
sac5,
tab5,
aas3,
sat3,
tas3,
2 letter words:
ab4,
ba4,
aa2,
as2,
at2,
ta2,