为什么是be going bike riding而不是be going riding bike

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为什么是be going bike riding而不是be going riding bike

为什么是be going bike riding而不是be going riding bike
为什么是be going bike riding而不是be going riding bike

为什么是be going bike riding而不是be going riding bike
只能说be going to ride bike,不能说be going riding bike,这样累赘,如果一定要说be going riding bike,此时外国人会省略going,直接说 be riding bike,riding bikes中的riding 是动词.bikes是名词.通常用于进行时,比如We are riding bikes.【我们正在骑车】
. 而 be going bike riding其实也可以写成be going bike-riding,后面可以看成一个词,bike-riding 是复合名词,就是两个名词连接在一起构成的复合词,字面意思,就是名词.如We are doing bike-riding.【我们正在骑车】.
因为骑马会说成horse riding,骑自行车也就会说成bike riding
口语中经常会这样说,这是习惯用法.
如:I went bike riding in the park yesterday.我昨天去公园骑车了.
口语中很多不一定按照严格的语法来,bike riding是习惯口语说法.

是go swimming这个用法,go riding只是在前面加了个bike意思还是一样的go bike-riding:去骑车吧,be going 是表示将来时吧
后面一个也应该是be going to ride a bike 吧,be going riding bike 是怎么回事