YOU SAID:

I don't know where my cat went

INTO JAPANESE

私の猫はどこに行ったか分かりません

BACK INTO ENGLISH

My cat does not know where it went

INTO JAPANESE

私の猫はどこに行った知らない

BACK INTO ENGLISH

Where did my cat do not know

INTO JAPANESE

私の猫がどこか分からない

BACK INTO ENGLISH

Not sure where my cat is

INTO JAPANESE

私の猫はどこかわからない

BACK INTO ENGLISH

Know where my cat is

INTO JAPANESE

私の猫がいます。

BACK INTO ENGLISH

My cat is.

INTO JAPANESE

私の猫です。

BACK INTO ENGLISH

This is my cat.

INTO JAPANESE

これは私の猫です。

BACK INTO ENGLISH

This is my cat.