The plural form for the noun day is days.
The noun 'days' is the plural form of the singular noun 'day'.
The common noun for Sunday is day.
It is a proper noun, as a Sunday is a specific day. Day would be a common noun, but Sunday or Sundays, its plural form, is a proper noun.
No. Headmasters would be a plural noun.
The noun days is the plural form of the singular noun day.The possessive form of the singular noun is day's (a day's work).The possessive form of the plural noun is days' (two days' work).
it doesn't have a plural because it is not a noun if it were a noun its plural would be moos
When no is a noun the plural is NOES. As in "The noes have won the day."
No, but it is a proper noun.
The plural form for the noun boy is boys.
The noun 'women' is the irregular plural form. The singular noun is woman.
He is a singular noun. They would be plural.
Library is a singular noun. For it to be plural, it would be libraries.