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"Yes" is an interjection which is often translated as "sí", and "tomorrow" is an adverb which is often translated as "mañana". Learn more about the difference between "yes" and "tomorrow" below.
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).
tomorrow()
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
a. mañana
The students have a math test tomorrow.Los estudiantes tienen un examen de matemáticas mañana.
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
3. (the future)