YOU SAID:

I was walking down the road when I saw a puppy

INTO JAPANESE

子犬を見たとき、私は道を歩いていました

BACK INTO ENGLISH

I was walking down the road when I saw the puppy

INTO JAPANESE

子犬を見たとき、私は道を歩いていました

BACK INTO ENGLISH

I was walking down the road when I saw the puppy