singular
Toby's is considered a plural and Toby singular
Are is plural. "Is" is singular. For example, "There is a glove on the chair". That is singular. "There are gloves on the chair". That is plural.
Who may be singular or plural.
diagnosis is singular diagnoses is plural sis = singular ses = plural
Atrium is singular - the plural is atria.
Museum is singular. Museum's is singular possessive. Museums is plural. Museums' is plural possessive.
Toby's is considered a plural and Toby singular
The singular noun is museum, the singular possessive form is museum's.The plural noun is museums, the plural possessive form is museums'.
The singular noun is museum, the singular possessive form is museum's.The plural noun is museums, the plural possessive form is museums'.
Wisdom is considered a singular noun.
Awards inventory is singular. The plural would be awards inventories.
everyone is a collective noun, thus it is singular.
Ya'll is considered a plural because it means you all and you all is a plural
The noun passes is the plural form for the singular pass. Example: The museum passes for the students are here. The word passes is also the third person, singular, present of the verb to pass.
"No one" is considered third person singular.
Classwork is singular. Classworks is plural.
Lis pendens is considered a singular and plural version of the word. You would NOT spell it "lis pendenses" as the plural. You simply use the same word as singular and plural.