FIDDLIEST

de ed ef el es et fe id if is it li si ti

def del did die dif dis dit eds efs eft eld elf els fed fes fet fid fie fil fit ids ifs its led lei les let lid lie lis lit sei sel set sit ted tel tie til tis

defi deft deil delf deli dels delt died diel dies diet difs dite dits edit efts elds feds felt fest fets fids file fils fist fits fled flit ides idle isle left leis lest lets lids lied lief lies life lift list lite lits seif self side sift sild silt site sled slid slit teds tels tide tied ties tile tils