Locker=singular
Lockers=plural
The possessive form of the singular noun girl is girl's.The possessive form of the plural noun girls is girls'.Examples:What is the girl's name. (singular, the name of the girl)The girls' locker room is on the left. (plural, the locker room for girls)
The possessive form of the singular noun key is key's.The plural form of the noun key is keys.The plural possessive form is keys'.Examples:This key's tag says, "storage locker".I finally found the ring of keys' owner.
A possessive noun can be singular or plural:a singular noun forms its possessive by adding an apostrophe s ('s) to the end of the noun;a plural noun forms its possessive by adding just an apostrophe (') to the end of a plural noun that ends with an s, or an apostrophe s ('s) to the end of a plural noun that does not end with an s.Examples:the boy's locker (singular)The boys' locker room (plural)a child's toy (singular)the children's playground (plural)the doctor's office (singular)the doctors' clinic (plural)
The word boy's is the singular possessive of the noun boy.The plural noun is boys.The plural possessive form is boys'.Example: The boys' locker room is at the end of this corridor.
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 word team is singular; the plural form is teams.
'These' is the plural form of 'this'.
Who may be singular or plural.