No. Headmasters would be a plural noun.
The correct word is likely one of these : PNEUMONIA (noun) - an illness marked by fluid in the lungs PHENOMENA (plural noun) - unusual occurrences, plural of phenomenon
it doesn't have a plural because it is not a noun if it were a noun its plural would be moos
To make the surname Justiz plural, you would add an "s" at the end. So it would become Justizs.
I'll is a contraction of two parts of speech, I and will. I is a pronoun, and will is a verb.
'es is not used to make the word fox into a singular possessive noun, rather you should add 's to fox to do so. If you add the suffix -es to fox, it would then make the word plural, and if you add a ' to the end of foxes, it would make the word possessive. fox = singular noun fox's = singular possessive noun foxes = plural noun foxes' = plural possessive noun
The plural form for the noun boy is boys.
The plural form for the noun day is days.
It can be, especially the plural (e.g. the ills of society). Ill is usually an adjective, or more rarely an adverb. The noun is "illness."
The noun 'women' is the irregular plural form. The singular noun is woman.
He is a singular noun. They would be plural.
To make "la bandera" plural, you would change it to "las banderas." This involves changing the definite article to its plural form and adding an "s" to the noun.