YOU SAID:

no way are you going to go to that party

INTO JAPANESE

まさかそのパーティーに行くつもりはない

BACK INTO ENGLISH

I'm not going to the party

INTO JAPANESE

僕は　パーティーには行かないからね

BACK INTO ENGLISH

Because I'm not going to the party.

INTO JAPANESE

僕は　パーティーには行かないからね

BACK INTO ENGLISH

Because I'm not going to the party.