POSTFIXED

de do ed ef es et ex fe id if is it od oe of oi op os ox pe pi si so ti to xi

def dex die dif dip dis dit doe dos dot eds efs eft fed fes fet fid fie fit fix foe fop fox ids ifs its ode ods oes oft ope ops opt ose ped pes pet pie pis pit pix pod poi pot pox psi pst sei set sex sip sit six sod sop sot sox ted tie tip tis tod toe top xis

defi deft dies diet difs dips dipt dite dits does doit dope dose dost dote dots edit efts epos exit expo feds feod fest fets fido fids fist fits fixt foes fops ides odes oped opes opts oxes oxid peds peso pest pets pied pies piso pits pods poet pois pose post pots seif sept sext side sift sipe site soft sped spit spot step stop teds tide tied ties tips tods toed toes tope topi tops