YOU SAID:
i had a dog five years ago
INTO JAPANESE
私は5年前に犬を飼っていました
BACK INTO ENGLISH
I had a dog 5 years ago
INTO JAPANESE
5年前に犬を飼いました
BACK INTO ENGLISH
I got a dog 5 years ago
INTO JAPANESE
5年前に犬を飼いました
BACK INTO ENGLISH
I got a dog 5 years ago
That didn't even make that much sense in English.