YOU SAID:

you must cook the sacred meat for grandma

INTO JAPANESE

おばあちゃんのために聖なる肉を調理しなければなりません

BACK INTO ENGLISH

I have to cook sacred meat for my grandma

INTO JAPANESE

おばあちゃんのために聖なる肉を調理しなければならない

BACK INTO ENGLISH

I have to cook sacred meat for my grandma