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
it is unlikely that this phrase will ever reach equilibrium