"Themself" is neither a word nor a noun.
As yet, although English is an evolving language, the word "themself" is not recognised as a true word. It should be avoided. Instead, pronouns (not nouns) such as himself, herself and themselves are used, with themselves being the plural form.
Themselves.
There is actually no word themself. It can be himself, herself or itself but it cannot be themself. The correct word is themselves, which is also the plural.
The plural noun is halves.
The plural noun of general is generals. Generals is a regular plural noun.
The plural noun for path is paths. The plural noun for patch is patches.
No, Mice is a plural noun. Mouse is the singular noun.
It is a plural noun.
No, it is a possessive noun. Mothers is a plural noun.
The plural form for the noun lady is ladies.
The plural form of the noun newspaper newspapers.
The noun 'teeth' is the plural noun. The singular noun is 'tooth'.
A regular plural noun is a noun that is made plural by adding -s or -es to the end of the word.An irregular plural noun is a noun that is made plural in some other way.The noun city is made plural by dropping the ending -y and adding -ies to the end of the word. The plural form for city is cities, an irregular plural.