YOU SAID:
My son too my dog on a walk and died of happiness
INTO JAPANESE
息子も犬も散歩して幸せで亡くなりました
BACK INTO ENGLISH
My son and dog walked and died happily
INTO JAPANESE
息子と犬は歩いて幸せに死にました
BACK INTO ENGLISH
Son and dog died happily walking
INTO JAPANESE
息子と犬は幸せに歩いて死亡しました
BACK INTO ENGLISH
Son and dog died walking happily
INTO JAPANESE
息子と犬は幸せに歩いて死亡しました
BACK INTO ENGLISH
Son and dog died walking happily
That didn't even make that much sense in English.