vs
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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).
1. (general)
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.
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).