5 letter words:
basis7,
bassi7,
isbas7,
subas7,
assai5,
4 letter words:
abas6,
baas6,
bass6,
bias6,
buss6,
isba6,
sabs6,
sibs6,
suba6,
subs6,
3 letter words:
aba5,
abs5,
baa5,
bas5,
bis5,
bus5,
sab5,
sib5,
sub5,
aas3,
ais3,
ass3,
sau3,
sis3,
2 letter words:
ab4,
ba4,
bi4,
aa2,
ai2,
as2,
is2,
si2,
us2,