YOU SAID:

Ooops. Gotta go for class. See ya!

INTO JAPANESE

おっと。授業に行かなきゃ。じゃあね！

BACK INTO ENGLISH

Oops. I have to go to class. See you!

INTO JAPANESE

おっと。私は授業に行かなければならない。じゃあね！

BACK INTO ENGLISH

Oops. I have to go to class. See you!