YOU SAID:
It's my cat's birthday party!
INTO JAPANESE
それは私の猫の誕生日パーティーだ!
BACK INTO ENGLISH
That's my cat's birthday party!
INTO JAPANESE
それは私の猫の誕生日パーティーです!
BACK INTO ENGLISH
That is my cat's birthday party!
INTO JAPANESE
それは私の猫の誕生日パーティーです!
BACK INTO ENGLISH
That is my cat's birthday party!
This is a real translation party!