YOU SAID:

I don't know what to say but i'm bored in class right now

INTO JAPANESE

何と言ったらいいのかわからないけど、今は授業に飽きている

BACK INTO ENGLISH

I don't know what to say, but I'm tired of class now

INTO JAPANESE

何と言ったらいいのかわからないけど、今は授業にうんざりしている

BACK INTO ENGLISH

I don't know what to say, but I'm tired of class now