YOU SAID:

We should castrate all males

INTO JAPANESE

すべての男性を去勢する必要があります

BACK INTO ENGLISH

All men need to be castrated

INTO JAPANESE

すべての男性は去勢する必要があります

BACK INTO ENGLISH

All men must be castrated

INTO JAPANESE

すべての男性は去勢されなければなりません

BACK INTO ENGLISH

All men must be castrated