begin, began , begun
drink, drank, drunk
ring , rang ,rung
sing, sang , sung
swim, swam, swum
bear , bore , born
swear , swore , sworn
tear , tore , torn
wear , wore , worn
drow , drew , drawn
blow , blew , blown
fly , flew , flown
grow , grew , grown
know , knew , known
throw , threw , thrown