if – si
(Pronounced see)
To remember that if is pronounced see (si) in French, use the following mnemonic.
"It's a big if, but if the operation's worked, you will see (si) again.

Examples of si (if) in a sentence
Si tu étudies, tu réussiras à l'examen.
(If you study, you will pass the test.)
S'il fait beau samedi, nous irons à la plage.
(If it's nice on Saturday, we'll go to the beach.)
Si tu as faim, mange une pomme.
(If you are hungry, eat an apple.)