单句改错6.I wish I am a bird flying in the sky

正确答案
I wish I was a bird flying in the sky
因为wish加的丛句是虚拟语气，要用一般过去时

I wish I am a bird flying in the sky am改为was wish后面要用虚拟语气
所以把am 变为was

I wish I were a bird flying in the sky.
虚拟语气，与现在相反。