PREDESCENT

de ed en er es et ne pe re

cee cep dee den eds end ens ere ern ers nee net pec ped pee pen per pes pet pst rec red ree rep res ret sec see sen ser set ted tee ten

cede cees cent cepe ceps cere cete cred deep deer dees deet dene dens dent dere dree ends epee erne erns erst esne need neep nerd nest nets pecs peds peed peen peer pees pend pens pent pere pert pest pets pree recs rede reds reed rees rend rent reps rest rete rets sect seed seen seep seer send sene sent sept sere sned spec sped step teds teed teen tees tend tens tern tree tres