YOU SAID:

i would have gotten two kittens but all of a sudden they were gone

INTO JAPANESE

私は2匹の子猫を手に入れたでしょうが、突然彼らはいなくなりました

BACK INTO ENGLISH

I would have got two kittens but suddenly they disappeared

INTO JAPANESE

私は2匹の子猫を飼っていたでしょうが、突然彼らは姿を消しました

BACK INTO ENGLISH

I would have had two kittens but suddenly they disappeared

INTO JAPANESE

私は2匹の子猫がいたでしょうが、突然彼らは姿を消しました

BACK INTO ENGLISH

I would have had two kittens but suddenly they disappeared