YOU SAID:

Oh no I’ve lost my dog in the cat and my pants fell down

INTO JAPANESE

ああ、私は猫の中で私の犬を失ったし、私のズボンが落ちた

BACK INTO ENGLISH

Oh, I lost my dog in the cat and my pants fell

INTO JAPANESE

ああ、私は猫の中で私の犬を失い、私のズボンが落ちた

BACK INTO ENGLISH

Oh, I lost my dog in the cat and my pants fell