The plural form of stereo is stereos.
Stereos
Stereos
The plural for stereo is stereos.
Bridges is the plural form of bridge.
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
There is no plural form for the word, countries. This word itself is a plural.
The plural of "she" is "they", so the plural of "she had" is "they had".
The plural form of stereo is stereos.
The plural possessive form of "stereo" is "stereos'."
The plural for stereo is stereos.
Bridges is the plural form of bridge.
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.
There is no plural form for the word, countries. This word itself is a plural.
"Groceries" is the plural form of "grocery."
The plural form of "meter" is "meters."
The sentence you have offered is oddly constructed. It is not clear why you are calling the club different; from what does it differ? I would rephrase as follows, for the sake of clarity: The club's activities require a radio, a stereo, and a guitar. In that case, of course, the word activities is plural. In your original version, there is no plural as such, although activity can be understood to include more than one form of activity.
The plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.
It has no plural form.
The plural form of rung is rungs.