YOU SAID:

I don't want to go to the party because I know that I'll be bored.

INTO JAPANESE

退屈することはわかっているので、パーティーには行きたくない。

BACK INTO ENGLISH

I know I'm bored, so I don't want to go to the party.

INTO JAPANESE

退屈しているので、パーティーには行きたくないです。

BACK INTO ENGLISH

I'm bored so I don't want to go to the party.

INTO JAPANESE

退屈なのでパーティーには行きたくない。

BACK INTO ENGLISH

I don't want to go to the party because it's boring.

INTO JAPANESE

退屈なのでパーティーには行きたくない。

BACK INTO ENGLISH

I don't want to go to the party because it's boring.