I go playing badminton once a week.这句话为什么不对?

I often go to movies once a week这句话有错吗 i go to ---- cinema once a week I go swimming once a week 英译汉 I go swimming once a week.意思 （1）I go the library once a week(用 once a week提问） I go to the library once a week 对once a week画线 I used to go see a movie once a week.为什么 go 和see 两个动词可以放在一起 I go swimming once a week怎么翻译成汉语? 填介词：I go to the movies ( ) once a week. I go hiking ( once) a week.(对划线部分提问) I go swimming once a week的汉语意思 I a week go to once.这样说对吗