YOU SAID:

" The key must be broken."

INTO JAPANESE

「鍵は壊されているに違いない。」

BACK INTO ENGLISH

"The lock must have been broken."

INTO JAPANESE

「鍵が壊れてしまったに違いない。」

BACK INTO ENGLISH

"The lock must have broken."

INTO JAPANESE

「鍵が壊れてしまったに違いない。」

BACK INTO ENGLISH

"The lock must have broken."