YOU SAID:
Those have to occur naturally.
INTO JAPANESE
それらは自然に発生する必要があります。
BACK INTO ENGLISH
They must occur naturally.
INTO JAPANESE
それらは自然に発生するものでなければなりません。
BACK INTO ENGLISH
They must be naturally occurring.
INTO JAPANESE
それらは自然に発生するものでなければなりません。
BACK INTO ENGLISH
They must be naturally occurring.
That didn't even make that much sense in English.
