Yes doesn't have a plural.
Yes, the plural of "is" is "are" in English.
Yes, phonemes is the plural of phoneme.
Yes, there is a plural for envoy: envoys
Yes, "cans" is the plural form of "can."
Yes, the plural form is costs.Example: The costs of the project are within the budget.
yes, fungus is singular Yes, fungi is plural and fungus is singular.
Yes... the plural form of storm is... storms.
Yes, the plural form of difference is differences
Yes. The plural is photosynthesises
Yes, the word plural is a noun.
Yes. The plural of resource is resources.
Yes, it's the plural of utility.