我学过游泳,但是没有学会.英语怎么说啊

问题描述:

我学过游泳,但是没有学会.英语怎么说啊
因为想表达:我小时候学过一次,没学会。后来长大了又学了一次,还是失败了。。

At my childhood I had been learning swimming for a while,and then I trid another time.But unfortunately,I still can't get it at last.
我学过游泳,但是没有学会.