他过去经常游泳 He used to swim ; His last regular swimming ; He used to swim regularly
他经常去游泳
He often goes swimming
以上为机器翻译结果，长、整句建议使用 人工翻译 。
去年夏天他经常去游泳。
He often went to swim last summer.
youdao
他经常去那条河游泳。
He often go swimming in the river.
应用推荐
模块上移
模块下移
不移动