Previous solution:
ads, ate, ats, date, dates, east, eat, eats, est, eta, etas, sad, sat, sate, sated, sea, seat, set, seta, stead, tad, tads, tea, teas, ted, teds
ads, ate, ats, date, dates, east, eat, eats, est, eta, etas, sad, sat, sate, sated, sea, seat, set, seta, stead, tad, tads, tea, teas, ted, teds