YOU SAID:

My bicycle has been stolen by an angry polar bear.

INTO JAPANESE

私の自転車は怒っているホッキョクグマに盗まれました。

BACK INTO ENGLISH

My bicycle was stolen by an angry polar bear.

INTO JAPANESE

私の自転車は怒っているホッキョクグマに盗まれた。

BACK INTO ENGLISH

My bicycle was stolen by an angry polar bear.