The noun "hour" is a singular noun, a word for one60 minute period of time.
The plural noun is "hours" a word for two or more 60 minute period of time.
Addendum is singular. Addenda or addendums is plural.
Analysis is the singular, analyses is the plural.
The noun 'sharpener' is singular, a word for one.The plural noun is 'sharpeners'.
Verbs cannot be singular or plural. Requires is after singular nouns.
penny is singular pennies is plural
The possessive form of the singular noun hour is hour's.Example: After an hour's wait, I called a taxi.The plural form of the noun hour is hours.The plural possessive form is hours'.Example: The beach is four hours' drive from here.
Examples of possessive forms for singular and plural units of time:an hour's layover (singular)two hours' layover (plural)a year's assignment (singular)two years' assignment (plural)a moment's fright (singular)two seconds' thought (plural)
practitioner is singular (plural practitioners)sofa is singular (plural sofas)satellite is singular (plural satellites)clips is plural (singular clip)dentist is singular (plural dentists)dollars is plural (singular dollar)article is singular (plural articles)magazines is plural (singular magazine)laminator is singular (laminators is plural)radios is plural (singular radio)
singular and plural
Singular: book / Plural: books Singular: cat / Plural: cats Singular: child / Plural: children Singular: foot / Plural: feet
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.
"Has" is singular, e.g. He has, she has. "Have" is plural, e.g. They have, we have. The exception is "I" - e.g. I have.
The second person pronoun 'you' is both singular and plural; for example:John, you are assigned to paint the cabinets. (singular)Frank and Fran, you are assigned to hang the wall paper. (plural)You can all break for an hour lunch around noon. (plural)
The word team is singular; the plural form is teams.
This is singular. These is the plural form.
These is plural, this is singular
'These' is the plural form of 'this'.