YOU SAID:
i'm in class its boring
INTO JAPANESE
私はクラスでその退屈です
BACK INTO ENGLISH
I'm that boring in class
INTO JAPANESE
私はクラスで退屈です
BACK INTO ENGLISH
I'm bored in class
INTO JAPANESE
私はクラスに退屈しています
BACK INTO ENGLISH
I'm bored in class
That didn't even make that much sense in English.