YOU SAID:
Going over to Janes to party
INTO JAPANESE
パーティーにジェーンズに行く
BACK INTO ENGLISH
go to the party janes
INTO JAPANESE
ジェーンズのパーティーに行く
BACK INTO ENGLISH
go to jane's party
INTO JAPANESE
ジェーンのパーティーに行く
BACK INTO ENGLISH
go to jane's party
This is a real translation party!