YOU SAID:

My brother is in Tokyo, therefore I shall kidnap the cat

INTO JAPANESE

私の兄は東京で、したがって私は猫を誘拐しなければなりません。

BACK INTO ENGLISH

My brother in Tokyo, so I CAT kidnapped do not.

INTO JAPANESE

東京猫誘拐しないように私の兄。

BACK INTO ENGLISH

Do not kidnap Tokyo cat my brother.

INTO JAPANESE

東京猫を私の兄を誘拐しません。

BACK INTO ENGLISH

My brother does not kidnap Tokyo cat.

INTO JAPANESE

私の兄は東京の猫を誘拐していません。

BACK INTO ENGLISH

My brother does not kidnap Tokyo cat.