YOU SAID:

My cat died, but I still have a dog.

INTO JAPANESE

私の猫が死亡したが、まだまだ犬。

BACK INTO ENGLISH

My cat died, but still dogs.

INTO JAPANESE

私の猫は、まだ犬が死んだ。

BACK INTO ENGLISH

My cat is still the dog died.

INTO JAPANESE

私の猫はまだ犬が死んだ。

BACK INTO ENGLISH

My cat is still the dog died.