The singular noun form for the plural consortia is consortium.
The plural of consortium can be either consortia or consortiums.
International Coalition of Library Consortia was created in 1997.
The singular form of the demonstrative pronoun 'these' is this.
The singular form of "that" is "it."
Porsche Consortia
The singular form of "cuffs" is cuff.
The singular form of "stratum" is "stratum." The word does not change in its singular form.
The singular form of feet is foot.
The singular form of "oases" is "oasis."
The singular form of "wash" is "washing."
The singular form of "dice" is "die."
The singular form of diagnoses is diagnosis.