1.win-won-won 2.leave-left-left 3.write-wrote-written 4.choose-chose-chosen
5.see-saw-seen 6.run-ran-run 7.lose-lost-lost 8.begin-began-begun
9.bring-brought-brought 10.go-went-gone 11.fall-fell-fallen 12.sing-sang-sung
13.spend-spent-spent 14.hold-held-held 15.ride-rode-ridden 16.lay-laid-laid