5 letter words:
abear7,
barer7,
barra7,
barre7,
rebar7,
arear5,
4 letter words:
arba6,
bare6,
bear6,
brae6,
brer6,
arar4,
area4,
rare4,
rear4,
3 letter words:
aba5,
arb5,
baa5,
bar5,
bra5,
brr5,
reb5,
are3,
ear3,
era3,
err3,
2 letter words:
ab4,
ba4,
be4,
aa2,
ae2,
ar2,
ea2,
er2,
re2,