6 letter words:
beeper10,
5 letter words:
berme9,
ember9,
emeer7,
4 letter words:
beep8,
berm8,
perm8,
beer6,
bree6,
epee6,
mere6,
peer6,
pere6,
pree6,
3 letter words:
bee5,
eme5,
pee5,
per5,
reb5,
rem5,
rep5,
ere3,
ree3,
2 letter words:
be4,
em4,
me4,
pe4,
er2,
re2,