The word clay is both singular and plural.
The word clays is a noun. It is the plural form of the verb clay.
just clay. Or, if you are referring to various types of clay, the plural form would be "clays".
there is no plural word for clay. "Look at all that clay" "alot of clay" how much clay do you have?" get the point?
There is no plural form. Do and Do not are verbs
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
The plural form of "was" is "were."
The plural form of "I" is "we."
The plural form of "is" is "are."
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.
"Groceries" is the plural form of "grocery."
"Beliefs" does not have a plural form, as it is already plural. Beliefs is the plural form of belief.