YOU SAID:
i am going to fail this class
INTO JAPANESE
私はこの授業に失敗するだろう
BACK INTO ENGLISH
i will fail this class
INTO JAPANESE
この授業は失敗するだろう
BACK INTO ENGLISH
this class will fail
INTO JAPANESE
このクラスは失敗します
BACK INTO ENGLISH
this class will fail
Okay, I get it, you like Translation Party.