The noun 'spread' is singular. The plural form is spreads.
Whether or not the word, English, is singular or plural depends on how it is used. It is singular when it refers to the English Language. English is the international language of business. It is plural when it refers to the people. The English have spread their culture throughout the world.
Stratus in Latin is the past participle of the verb sternere, "to spread out". Consequently, it is an adjective (in this case, in its masculine nominative singular form) meaning "spread out" or "prostrate". Exceptionally, stratus can also occur in place of the usual stratum meaning "a cover; a spread".
Mycelium is a word one may come across in scientific literature about botany or fungi. It denotes matter that is spread through the body of a fungus. Its plural is mycelia.
"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 singular is an adjective. Adjectives do not have singular or plural forms; adjectives have comparative forms: positive: singular comparative: more singular superlative: most singular
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)
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
singular
I AM, You (singular) ARE, He/She/It IS . . . . . Plural We/You/They ARE
Fruit is singular. Fruits is plural.
No one is a pronoun and is singular.
Atrium is singular - the plural is atria.