YOU SAID:
how about we go to this party this evening
INTO JAPANESE
今晩このパーティーに行きませんか
BACK INTO ENGLISH
Shall we go to this party tonight
INTO JAPANESE
今夜このパーティーに行きましょう
BACK INTO ENGLISH
Let's go to this party tonight
INTO JAPANESE
今夜このパーティーに行きましょう
BACK INTO ENGLISH
Let's go to this party tonight
Okay, I get it, you like Translation Party.