Ok my Sifu also teaches Hung Gar but he told me that there is only four forms in Hung Gar.
The four forms he teaches are Gung Jee Fok Fu Kuen, Fu Hok Sheung Ying Kuen, Sahp Ying Kuen, and Tid Sin Kuen. But I found out that there is an extra form called Ng Ying Kuen.

So my question is, is my Sifu wrong or that site I looked up wrong??