How to Say "might happen" in Spanish
The Spanish word for “might happen” is “pasara” — B1 level. This is a very common word in everyday Spanish.

Examples
Si pasara algo urgente, te llamaría de inmediato.
If something urgent were to happen, I would call you immediately.
No creían que eso pasara nunca en su ciudad.
They didn't believe that that would ever happen in their city.
The 'Imperfect Subjunctive' Tense
This form ('pasara') is used when talking about past wishes, doubts, or hypothetical situations that were unlikely or impossible. Think of it as 'would' or 'were to' in English.
Conditional Sentences
When you set up a hypothetical condition starting with 'Si' (If), the verb in the 'If' part often needs this special form: 'Si pasara esto, haríamos aquello' (If this happened, we would do that).
Mixing Up Tenses in 'If' Clauses
Mistake: “Using the future tense after 'Si': 'Si pasará mañana, te aviso.'”
Correction: The correct pattern for future hypotheticals is 'Si pasa mañana, te aviso' (using the present indicative). Reserve 'pasara' for less likely or past hypothetical events.
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.