YOU SAID:

I can't wait to go to my friends party

INTO JAPANESE

私は友達のパーティーに行くのが待てない

BACK INTO ENGLISH

I can't wait to go to my friend's Party

INTO JAPANESE

私は私の友人のパーティーに行き待つことができません。

BACK INTO ENGLISH

I cannot wait to go to my friend's Party.

INTO JAPANESE

私の友人のパーティーに行くを待つことはできません。

BACK INTO ENGLISH

Go to my friend's Party, can't wait.

INTO JAPANESE

私の友人に行くパーティ、待つことができません。

BACK INTO ENGLISH

Unable to wait, my friends going away party.

INTO JAPANESE

待って、私の友人のパーティーに行くことができません。

BACK INTO ENGLISH

You can't wait, go to my friend's Party.

INTO JAPANESE

待って、私の友人のパーティーに行くことはできません。

BACK INTO ENGLISH

You can't wait, go to my friend's Party.