YOU SAID:

I cannot believe that this class is so boring to you, it is actually quite interesting.

INTO JAPANESE

このクラスはとても退屈だとは信じられませんが、実際はとても面白いです。

BACK INTO ENGLISH

I can not believe that this class is very boring, but in reality it is very interesting.

INTO JAPANESE

このクラスはとても退屈だとは思えませんが、実際はとても面白いです。

BACK INTO ENGLISH

I do not think this class is very boring, but in reality it is very interesting.

INTO JAPANESE

私はこのクラスはとても退屈だとは思わないが、実際にはとても面白いです。

BACK INTO ENGLISH

I do not think that this class is very boring but in fact it is very interesting.

INTO JAPANESE

私はこのクラスは非常に退屈だとは思わないが、実際にはとても面白いです。

BACK INTO ENGLISH

I do not think this class is very boring, but in reality it is very interesting.

INTO JAPANESE

私はこのクラスはとても退屈だとは思わないが、実際にはとても面白いです。

BACK INTO ENGLISH

I do not think that this class is very boring but in fact it is very interesting.

INTO JAPANESE

私はこのクラスは非常に退屈だとは思わないが、実際にはとても面白いです。