There is no such a thing as a singular form of democracy.
Having said that watching someone's forehead not move during a conversation is a singular form of entertainment.
Among them was one of a very singular form, which appeared to have come from a distance.
They can also be used in singular form for precise actions.
Another way of looking at this is to treat the "singular" form as unspecified for number.
The singular form, Illuminatus, is a member of such a group.
Since the application is generally for the licensing of one product, the singular form seems to make more sense.
Yet one had to admit that the divine selection could take singular forms.
House at Big hill is based on a singular form.
A special and singular form of life, because there's only one.