YOU SAID:

The key to this door cannot be spoken without breaking

INTO JAPANESE

このドアの鍵は壊さずに話すことはできません

BACK INTO ENGLISH

You can't talk without breaking the lock on this door.

INTO JAPANESE

このドアの鍵を壊さずに話すことはできない。

BACK INTO ENGLISH

You can't talk without breaking the lock on this door.