Yes, the word 'couple' is a singular noun, the plural form is couples. Examples:
singular: Take a couple of aspirin and rest for a while.
plural: The square in a square dance is made up of four couples.
The noun 'couple' is a singular, common noun; a word for two individuals of the same sort considered together; or an indefinite small number (a couple of days). The plural form is couples.
A collective noun is a word used to group people or things taken together as one whole in a descriptive way. A collective noun is considered a collective noun as a function, not as a definition of the noun. Collective nouns are an informal part of language.
The noun 'couple' in the term 'a couple of days', is functioning as a collective noun.
The word is singular even though it refers to a plural condition
Sings is the present tense, third person singular conjugation of the verb sing.
They are all singular verb forms.
No, because there are not 100 plural pronouns.The plural pronouns are:weusyou (can be singular or plural)theythemthesethoseouroursyour (can be singular or plural)yours (can be singular or plural)theirtheirsourselvesyourselvesthemselvesbothfewfewermanyothersseveralall (can be singular or plural)any (can be singular or plural)more (can be singular or plural)most (can be singular or plural)none (can be singular or plural)some (can be singular or plural)such (can be singular or plural)
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.
Singular
Who may be singular or plural.
They are all singular verb forms.
No, because there are not 100 plural pronouns.The plural pronouns are:weusyou (can be singular or plural)theythemthesethoseouroursyour (can be singular or plural)yours (can be singular or plural)theirtheirsourselvesyourselvesthemselvesbothfewfewermanyothersseveralall (can be singular or plural)any (can be singular or plural)more (can be singular or plural)most (can be singular or plural)none (can be singular or plural)some (can be singular or plural)such (can be singular or 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.
singular and plural
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.
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)
The word team is singular; the plural form is teams.
This is singular. These is the plural form.
These is plural, this is singular
Who may be singular or plural.
Singular
diagnosis is singular diagnoses is plural sis = singular ses = plural