YOU SAID:

fire must be extinguished

INTO JAPANESE

火災が鎮火しなければなりません

BACK INTO ENGLISH

Fire must be extinguished

INTO JAPANESE

鎮火しなければなりません

BACK INTO ENGLISH

It must be extinguished

INTO JAPANESE

それは消滅しなければなりません

BACK INTO ENGLISH

It must disappear

INTO JAPANESE

それは消えなければなりません

BACK INTO ENGLISH

It must disappear