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"I'm sure" is a phrase which is often translated as "estoy seguro", and "yes" is an interjection which is often translated as "sí". Learn more about the difference between "I'm sure" and "yes" below.
I'm sure(
aym
 
shuhr
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. estoy seguro
I'm sure you won't have any problems if you tell them you know me.Estoy seguro de que no tendrás ningún problema si les dices que me conoces.
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yes(
yehs
)
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
adverb
a.
Do you want coffee? - Yes, but just a little bit.¿Quieres café? - Sí, pero solo un poquito.
An interjection is a short utterance that expresses emotion, hesitation, or protest (e.g., Wow!).
interjection
a.
Yes! I knew I was right!¡Sí! ¡Sabía que tenía razón!
A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
noun
a. el sí
(m) means that a noun is masculine. Spanish nouns have a gender, which is either feminine (like la mujer or la luna) or masculine (like el hombre or el sol).
(M)
Vote "yes" to the construction of the new school.Vota "sí" para la construcción de la nueva escuela.
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