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"You are" is a form of "you are", a phrase which is often translated as "eres". "Yes" is an interjection which is often translated as "sí". Learn more about the difference between "you are" and "yes" below.
you are()
A phrase is a group of words commonly used together (e.g., once upon a time).
a. eres (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
You are my best friend.Eres mi mejor amigo.
b. es (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
Thank you, sir. You are very generous.Gracias, señor. Es muy generoso.
a. estás (informal) (singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
A word or phrase that is singular (e.g., el gato).
I know you are mad, but you need to calm down.Sé que estás enojado pero tienes que tranquilizarte.
b. está (formal) (singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
A word or phrase that is singular (e.g., el gato).
You are on 30th Ave. Broadway is that way.Está en la avenida 30. Broadway queda por allá.
yes()
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).