Spanish Si Clauses


If clauses in Spanish (Si cláusulas en español) are also known as conditionals. The if clauses, indicate a possibility that something may happen in either the past, present or future. Si clauses express a condition that needs to be met in order for a certain result to occur.

The Si clauses in Spanish can be divided into three different types:

  • likely situations
  • unlikely situations
  • impossible situations.

Si clauses in Possibilities / Likely Situations

This type of si clause is used for possibilities or likely situations in the present, future, or the imperative.

Si clausesDefinitionsExamples
Si + Present, PresentThis construction is used for situations that happen regularly or are very likely to happen.Si llueve hoy, no caminamos, tomamos un taxi.

If it rains today, we don’t walk, we take a taxi.
Si + Present, FutureThis refers to events that will occur in the future. They may become true or not.Si tengo tiempo, iré contigo de compras.

If I have time, I will go shopping with you.
Si + Present, ImperativeThe imperative is used for orders or requests.Si puedes, llama ahora.

If you can, call now.
Si clauses in the present / future and imperative

Si Clauses used in Unlikely Situations

This type of conditional expresses situations which are unlikely or improbable at the moment. For the si part, the imperfect subjunctive tense is used, for the result part the conditional tense is used to indicate what could or would happen.

Note: The order of the clauses is unimportant.

Examples:

Si tuviera tiempo, iría contigo.
If I had time, I would go with you.

Si fueras a trabajar, tendrías más dinero.
If you went to work, you would have more money.

Si tuviera dinero, compraría un auto nuevo.
If I had money, I would buy a new car.

Si Clauses in Impossible Situations

This conditional expresses situations or events that weren’t able to be accomplished because of an obstacle or unexpected event. To form the Si clause, the pluperfect subjunctive tense is used, while the result clause uses either the pluperfect subjunctive or the conditional perfect tense.

Note: The order of the clauses is unimportant.

Examples:

Si hubiera ido, te habría visto.
If I had gone, I would have seen you.

¿Hubieras preparado la cena si te lo hubiera dicho?
Would you have prepared dinner if I had told you?

Si hubiera tomado el autobús, ya estaría en casa ahora.
If I had taken the bus, I’d be home by now.

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