YOU SAID:

i was walking my dog when i came across a meatball

INTO JAPANESE

私はミートボールに出くわしたとき、私は私の犬を歩いていました

BACK INTO ENGLISH

When I came across the meatballs, I was walking my dog

INTO JAPANESE

私はミートボールに出くわしたとき、私は私の犬を歩いていました

BACK INTO ENGLISH

When I came across the meatballs, I was walking my dog