YOU SAID:

I lost my dog. I thoght you was i am sad.

INTO JAPANESE

犬を失くしました。私はあなたが私が悲しいだったと思います。

BACK INTO ENGLISH

I lost my dog. I think you were sad for me.

INTO JAPANESE

犬を失くしました。あなたは私にとって悲しかったと思います。

BACK INTO ENGLISH

I lost my dog. I think you were sad for me.