YOU SAID:

I actually think that the real problem about my science teacher is that he thinks that he is better than everyone

INTO JAPANESE

私の理科の先生の本当の問題は、彼が自分が誰よりも優れていると思っていることだと思います

BACK INTO ENGLISH

I think the real problem with my science teacher is that he thinks he's better than everyone else.

INTO JAPANESE

私の理科の先生の本当の問題は、自分が他の誰よりも優れていると思っていることだと思います。

BACK INTO ENGLISH

I think the real problem with my science teacher is that he thinks he's better than everyone else.