If – si
(Pronounced see)
To remember that if is pronounced see (si) in Spanish, use the following mnemonic:
If I was taller, I might be able to see (si) the football match.

Examples of si (if) in a sentence
Si no estudias, no aprenderás.
(If you don't study, you won't learn.)
Iré al mercado si tengo tiempo.
(I will go to the market if I have time.)
Si quieres, podemos comer juntos.
(If you want, we can eat together.)