was keeping, was raising, used to keep, used to raise
犬じゃなくて、猫を飼ってたよ。
I had a cat, not a dog.
子どもの頃、ベロっていう犬を飼ってたよ。
When I was a kid, I had a dog named Velo.
飼ってた犬の名だ
That was the name of a dog I used to have.
— インディ・ジョーンズ／最後の聖戦 (1989)
恐竜のペットを飼ってた？
Did you have a pet dinosaur?
— ザ・マン・フロム・アース (2007)
他のを飼ってたんだろ
You must have kept something else.