enjoy doing
乐于做...,喜欢做...,喜欢做某事,享受做…的乐趣
例句：
Many women now take part in sports and games of many different kinds,and enjoy doing so.
现在很多妇女参加各类体育运动和比赛,而且非常热衷于这些运动和比赛.
至于enjoy to do.我同意楼上的两位的说法,有这样的用法却没有这样的词组.