YOU SAID:

I would have had a pet dog if my parents weren't so strict.

INTO JAPANESE

私の両親がそれほど厳しくないなら、私は愛犬を飼っていただろう。

BACK INTO ENGLISH

If my parents weren't too strict, I would have had a dog.

INTO JAPANESE

私の両親が厳しすぎなければ、私は犬を飼っていただろう。

BACK INTO ENGLISH

If my parents weren't too strict, I would have had a dog.