YOU SAID:

I went outside to see a dog and then I saw a fence sitting along the blue sky

INTO JAPANESE

犬を見に外に出たら、青空に沿って柵が立っているのが見えた

BACK INTO ENGLISH

When I went outside to see the dog, I saw a fence along the blue sky.

INTO JAPANESE

犬を見に外に出ると、青空に沿って柵が見えた。

BACK INTO ENGLISH

When I went outside to see the dog, I saw a fence along the blue sky.