The plural for wash is wash, as in the following sentence:
Jenny brought in the wash, which was left outside.
However, it might have to be washes in cases like this:
Nicholas signed up to do seven car washes on Saturday.
The plural of bath is baths
The plural form of bathtub is bathtubs.
Bridges is the plural form of bridge.
Radios
"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 of bathtub is bathtubs.
The plural of bathtub is bathtubs.
soap scum sticks to the side of the bathtub witch causes bathtub rings to form.
Yes, it is very common for a vortex to form in a bathtub as it drains.
Bridges is the plural form of bridge.
Radios
yes
"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 plural form for the noun sergeant is sergeants; the plural possessive form is sergeants'.