Is my goose eggs dead???

[skysfarm03]

Hello, my african goose has been sitting on some of her eggs for a while now and when I candled the eggs (its probabily been 26days?) some are pitch black inside and the others have an air bubble but it have the lines that look greenish color. There are 2 eggs that have live babies in them one is a goose and the other is a duck or chicken, the one goose egg is only at day 4 when shes been sitting on it for more than that many days.
Also, if these dont hatch will I be able to put other eggs under her?
She never gets off of them, I have to put a bowl with her food in it next to her.

 

[Nebraskachick13]

We hatched duck eggs in an incubator and we got a warm glass of water and put the eggs in the glass. If the egg twitches and moves its still alive but if it just sits there it didn't make it.