YOU SAID:

I'll burn our bridge behind to ash.

INTO JAPANESE

私は灰を背にして灰を燃やします。

BACK INTO ENGLISH

I burn the ash with ashes behind.

INTO JAPANESE

私は灰で灰を燃やす。

BACK INTO ENGLISH

I burn ash with ash.

INTO JAPANESE

私は灰で灰を燃やす。

BACK INTO ENGLISH

I burn ash with ash.