YOU SAID:
Hey man, do you want to go to the party this sunday?
INTO JAPANESE
こんにちは、今日の日曜日にパーティーに行きたいですか?
BACK INTO ENGLISH
Hello, do you want to go to a party on Sunday of today?
INTO JAPANESE
こんにちは、今日の日曜日にパーティーに行きたいですか?
BACK INTO ENGLISH
Hello, do you want to go to a party on Sunday of today?
That didn't even make that much sense in English.