I'm going to go hiking可不可以说成I'm going hiking或者I'

Question

I'm going to go hiking可不可以说成I'm going hiking或者I'm going to hike

Answer 1

不可以，go +Ving形式表示去做某件事情，类似的还有go fishing ,go shopping.
I‘m going to go hiking.是一般将来时态，改动之后句子是错的。

Answer 2

可以，I am going hiking是现在进行时表将来。

Answer 3

前两种可以

Answer 4

I am going to a hike