According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 61 words with the pattern --B--A-. That is, seven letter words with 3rd letter B and 6th letter A. In
alphabetical order, they are:
albatas
albinal
babalas
babysat
bobstay
cabalas
cabanas
cobaeascobloaf
cubical
cubicas
cubital
embread
fabliau
fabular
fibulae
fibular
fibulas
habitan
habitat
hebonas
inbreak
kabakas
kabalas
kabayas
liberal
lobolas
lobular
mabelas
mobsman
nebulae
nebular
nebulas
orbital
orbitas
pabular
puberal
qabalahqabalas
rebegan
sabkhah
sabkhas
sabkhat
subadar
subalar
subclan
subdean
subdual
subedar
subgoal
subhead
suboral
suboval
tableau
tabulae
tabular
tubular
umbonal
upbreak
webinar
zabetas