The plural form of "riot" is "riots."
The plural form of the demonstrative pronoun 'that' is those.
The plural form of rung is rungs.
The plural form of parenthesis is parentheses.
The plural form of boy is boys.
"Important" is an adjective. It does not have a plural form.
Riots is a noun (plural form of riot) and a verb (third person singular conjugation of riot).
The general noun form of the word riotous is "riot". A person involved in a riot is called a "rioter", which is another noun form of riotous.
Bridges is the plural form of bridge.
"Groceries" is the plural form of "grocery."
There is no plural form for the word, countries. This word itself is a plural.
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
The plural form of "meter" is "meters."
It has no plural form.
The plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.
The plural form of rung is rungs.
The plural form of mouth is mouths. The plural form of month is months. The Mounth is a range of hills in Scotland and does not have a plural form.
The plural of "she" is "they", so the plural of "she had" is "they had".