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"Si" is a form of "si", a conjunction which is often translated as "if". "Estoy listo" is a phrase which is often translated as "I'm ready". Learn more about the difference between "estoy listo" and "si" below.
estoy listo(
ehs
-
toy
lees
-
toh
)A phrase is a group of words commonly used together (e.g., once upon a time).
a. I'm ready
¡Date prisa! El taxi está esperando en la puerta. - Estoy casi listo. Solo me falta ponerme los zapatos.Hurry up! The taxi is waiting outside. - I'm almost ready. I only need to put on my shoes.
2. (colloquial) (I'm in trouble)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
a. I'm done for (colloquial)
A word or phrase that is commonly used in conversational speech (e.g., skinny, grandma).
Pues como todos los días tenga que quedarme en la oficina trabajando hasta las 9 pm, estoy listo.Well, if I have to stay in the office working until 9 pm everyday, I'm done for!
si(
see
)A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).