YOU SAID:
I wish to have the sausage in the father in law.
INTO JAPANESE
義理の父にソーセージを食べたいです。
BACK INTO ENGLISH
I want to eat sausages for my father-in-law.
INTO JAPANESE
義父のためにソーセージを食べたいです。
BACK INTO ENGLISH
I want to eat sausages for my father-in-law.
That didn't even make that much sense in English.