5 letter words:
terek9,
beret7,
4 letter words:
berk10,
kerb10,
keet8,
kete8,
reek8,
reke8,
teek8,
trek8,
beer6,
beet6,
bere6,
bete6,
bree6,
rete4,
teer4,
tree4,
3 letter words:
keb9,
eek7,
eke7,
erk7,
ket7,
bee5,
bet5,
reb5,
ere3,
ree3,
ret3,
tee3,
2 letter words:
be4,
ee2,
er2,
et2,
re2,
te2,