YOU SAID:
there was a eggnogg mug in the roof
INTO JAPANESE
屋根にエッグノッグマグカップがありました
BACK INTO ENGLISH
There was an eggnog mug on the roof
INTO JAPANESE
屋上にエッグノッグマグがあった
BACK INTO ENGLISH
There was an eggnog mug on the roof
You've done this before, haven't you.