How can I smooth this face? I have a face that does not follow suit I have tried everything I can come up with but for some reason this face does not have the same shading as the others.

Any help here would be great cause it is like a bad headache and rater be rid of it.

I already have edge split and tried to extrude the face from the previous one that does have correct shading.
I want to give credit to this post the answer to put the f2 add on was a bit weird but simply deleting the face only and removing doubles and after selecting the vertices and fill helped and is the solution for me.

Smooth shading is seemingly creating incorrect normals