The possessive adjective 'your' is both singular or plural. Examples:
Singular: Jane, your daughter is waiting in the playroom.
Plural: Joe and Jane, your daughter is waiting in the playroom.
Plural: All of your children are waiting in the playroom.
You can be singular or plural depending on the context. When addressing a single person, you refer to that person as "you". When addressing an audience, you refer to all the people as "you".
When the subject is plural.
In English, only the verb "be" has a special form "are" to go with a plural subject instead of the singular "am" or "is." So we say "I see" or "we see" without changing the verb. In many languages, the verb would change.
The word 'you' is not a noun; you is a pronoun, a second person pronoun that takes the place of the noun for the person or persons spoken to.
The pronoun 'you' can be used in place of a singular or a plural noun; for example:
Since you are my friend, so my mother made some cookies for you.
Since you are my friends, my my mother made some cookies for you.
No English words end in "you," except the word you, whose plural is you. If you mean words ending in -u, add s to make the plural: Bureaus, tutus, tabus etc.
The word temperature is a singular noun. The plural noun is temperatures.
The noun teeth is plural.The plural form is tooth.
The word moon is a singular noun. The plural noun is moons.
The noun 'bunny' is a singular noun, a word for one.The plural noun is bunnies.
The noun 'homelessness' is a singular, uncountable noun (it has no plural form).
No the word notes is a plural noun. The singular noun is note.
The noun 'loss' is the singular noun. The plural noun is losses.
The word army is a singular noun; armies is the plural form.
The word 'antelope' is a singular noun, a word for one animal.The plural noun is 'antelopes'.
The noun 'scales' is a plural noun, a word form two or more.The singular noun is 'scale'.
The noun personalities is the plural form for the singular noun personality.
The word clotheslines is a plural noun. The singular noun is clothesline.
The word temperature is a singular noun. The plural noun is temperatures.
The word aisle is a singular noun. The plural noun is aisles.
The noun teeth is plural.The plural form is tooth.
The noun 'orchid' is a singular noun, a word for one.The plural noun is 'orchids'.
The word moon is a singular noun. The plural noun is moons.