The Perfect Conditional Tense
To talk about what would have happened in a hypothetical past situation, use the perfect conditional tense (condicional compuesto). It is often used to discuss alternative outcomes—like how a chaotic wedding might have gone differently.
To form the perfect conditional, combine the conditional tense of the auxiliary verb haber with the past participle of your main verb (e.g., tropezado, visto, pospuesto).
| Subject | Haber (auxiliary) |
|---|---|
| yo | habría |
| tú | habrías |
| él / ella / usted | habría |
| nosotros / nosotras | habríamos |
| vosotros / vosotras | habríais |
| ellos / ellas / ustedes | habrían |
Use this structure to express actions that someone would have taken:
| What a chaos! I would have postponed the wedding. | ¡Vaya caos! Yo habría pospuesto la boda. |
| The mother-in-law would have postponed the ceremony. | La suegra habría pospuesto la ceremonia. |
To make a negative statement, place no immediately before the conjugated form of haber:
| The best man would not have tripped at the altar. | El padrino no habría tropezado en el altar. |
If you are using a reflexive verb (such as ponerse) or a verb that takes an indirect object pronoun (like encantar), place the pronoun immediately before haber:
| He would have put on the tuxedo for the toast. | Él se habría puesto el esmoquin para el brindis. |
| My mother-in-law would have loved to dance the waltz. | A mi suegra le habría encantado bailar el vals. |
As with other perfect tenses, the auxiliary verb haber changes to match the subject, while the past participle never changes its ending. You can also use other negative words like nadie before the verb:
| Nobody would have seen that tear. | Nadie habría visto esa lágrima. |
| We would have postponed the waltz to avoid the failure. | Habríamos pospuesto el vals para evitar el fracaso. |
