6 letter words:
better8,
bitter8,
rebite8,
tetter6,
titter6,
5 letter words:
beret7,
biter7,
bitte7,
britt7,
rebit7,
tribe7,
retie5,
tetri5,
titer5,
titre5,
trite5,
4 letter words:
beer6,
beet6,
bere6,
bete6,
bier6,
bite6,
bitt6,
bree6,
brei6,
brie6,
brit6,
rete4,
rite4,
ritt4,
teer4,
tete4,
tier4,
tire4,
tite4,
tree4,
tret4,
trie4,
3 letter words:
bee5,
bet5,
bit5,
reb5,
rib5,
ere3,
ire3,
ree3,
rei3,
ret3,
rit3,
tee3,
tet3,
tie3,
tit3,
2 letter words:
be4,
bi4,
ee2,
er2,
et2,
it2,
re2,
te2,
ti2,