If you freeze eggs while the eggs are still in the shell the freezing temperatures will crack the egg shells.
Then when you take the eggs out of the freezer you'll have cracked frozen eggs.
The eggs when they thaw will create a mess in the egg carton or in the container the eggs were frozen in.
So it's best to not freeze eggs while the eggs are still in the egg shells.
When freezing eggs it's best to crack the eggs open and then put the egg into a bowl and then mix the eggs up.
Then place the eggs into the freezer and throw the egg shells away.
You can freeze eggs while in the shell by putting them in a container but it's not recommended because the eggs when frozen will crack open.