English–Spanish
“if” in Spanish
How to say “if” in Spanish
“If” in Spanish is si.
A conditional switch that lets one outcome occur only if a requirement holds.
Example sentences with si
No sé si vendrá mañana.
I don't know whether he will come tomorrow.
Tips for using si
- In set phrases like por si acaso ('in case'), si works as 'in case' rather than forming a full hypothetical clause.