5 letter words:
keefs12,
skeef12,
4 letter words:
keef11,
kefs11,
ekes8,
okes8,
seek8,
skee8,
skeo8,
soke8,
fees7,
foes7,
3 letter words:
kef10,
eek7,
eke7,
kos7,
oke7,
efs6,
fee6,
fes6,
foe6,
oes3,
ose3,
see3,
2 letter words:
ko6,
ef5,
fe5,
of5,
ee2,
es2,
oe2,
os2,
so2,