YOU SAID:

We teachers are rather good at magic, you know

INTO JAPANESE

私たち教師も知っている魔法が得意

BACK INTO ENGLISH

Our teachers know that magic is good

INTO JAPANESE

私たちの先生は、魔法は良いと知っています

BACK INTO ENGLISH

Our teacher knows that magic is good

INTO JAPANESE

私たちの先生は魔法が良いことを知っています