vs
QUICK ANSWER
"Si" is a form of "si", a conjunction which is often translated as "if". "A veces" is a phrase which is often translated as "sometimes". Learn more about the difference between "si" and "a veces" below.
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).
a veces(
ah
beh
-
sehs
)A phrase is a group of words commonly used together (e.g., once upon a time).
