There is no plural form for the noun dismay. Dismay is a state of being, you are either in that state or you are not. When you need to say that a number of people are in the state of dismay, you use the adjective form, the dismayed people, or the verb form, they were dismayed.
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".
The plural form of the noun anniversary is anniversaries.The plural form of the church's anniversary is the church's anniversaries.The plural form of the noun church is churches.The plural possessive form is churches'.The plural form of church's anniversary is the churches' anniversaries.
The plural form is founders. The plural possessive is founders'.