请列举50个过去式（要有原型）!

1. begin—began,drink—drank,give—gave,ring—rang,sing—sang,sit—sat,swim—swam2. drive—drove,ride—rode,write—wrote3．改动词原形中的aw ／ow为ew,变成过去式.如：draw—drew,grow—grew,know—knew,thr...