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"Si" is a form of "si", a conjunction which is often translated as "if". "Ti" is a pronoun which is often translated as "you". Learn more about the difference between "si" and "ti" 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).
ti(
tee
)A pronoun is a word that stands in for a noun (e.g., she).
1. (informal) (second person singular)
A word or phrase used to refer to the second person informal “tú” by their conjugation or implied context (e.g., How are you?).
b. yourself (reflexive)
Primero piensa en ti, luego puedes ver cómo ayudas a los demás.First think of yourself, then you can see how you can help the rest.