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"Si" is a form of "si", a conjunction which is often translated as "if". "Si hay" is a phrase which is often translated as "if there is". Learn more about the difference between "si hay" and "si" below.
si hay(
see
 
ay
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. if there is (singular)
Si hay algún cambio en el estado del paciente, llámeme enseguida.If there is any change on the patient's condition, call me immediately.
b. if there are (plural)
Avísame si todavía hay boletos para la sinfónica.Let me know if there are still tickets for the symphonic.
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si(
see
)
A conjunction is a word that connects words, phrases, clauses, or sentences (e.g., The cat and the dog slept.).
conjunction
a. if
Si llueve mañana, cancelaremos el pícnic.If it rains tomorrow, we will cancel the picnic.
a. whether
Preguntó si me estaba divirtiendo.He asked whether I was enjoying myself.
b. if
Paco quiere saber si Laura también va a asistir.Paco wants to know if Laura is also going to attend.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
masculine noun
a. B
Primero lo oí en si menor.I first heard it played in B minor.
b. ti (solfége)
Practiquemos las escalas en orden inverso: do, si, la...Let's practice scales in reverse order: do, ti, la...
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