YOU SAID:
I am throwing a party will you come tonight.
INTO JAPANESE
今夜あなたが来るパーティーを開催します。
BACK INTO ENGLISH
We will have a party for you tonight.
INTO JAPANESE
今夜あなたのためにパーティーをします。
BACK INTO ENGLISH
I'll have a party for you tonight.
INTO JAPANESE
今夜あなたのためにパーティーをします。
BACK INTO ENGLISH
I'll have a party for you tonight.
That didn't even make that much sense in English.