IF I AM A TEACHER对吗?是WERE还是AM?

IF I AM A TEACHER对吗?是WERE还是AM?
IF I AM A TEACHER对吗?
是WERE还是AM?

IF I AM A TEACHER对吗?是WERE还是AM?
正常应该用were,这是虚拟语气用法,比如:If I were Bill Gates,I would live on the Moon.
用am表示真实的条件句,如:If I am tired,I will call you.

用was

是虚拟语气就用were