5 letter words:
kerel9,
rebel7,
4 letter words:
berk10,
kerb10,
keel8,
leek8,
leke8,
reek8,
reke8,
beer6,
bere6,
blee6,
bree6,
leer4,
lere4,
reel4,
3 letter words:
keb9,
eek7,
eke7,
elk7,
erk7,
lek7,
bee5,
bel5,
reb5,
eel3,
ere3,
lee3,
ree3,
2 letter words:
be4,
ee2,
el2,
er2,
re2,