El Condicional Perfecto is used in Spanish to say something would have happened.
| yo | habría | |
| tú | habrías | |
| él / ella / Ud. | habría | + past participle |
| nosotros | habríamos | |
| vosotros | habríais | |
| ellos /ellas / Uds. | habrían |
This is how to form El Condicional Perfecto:
haber in the conditional + past participle of second verb
Look at these examples of irregular verbs in El Condicional Perfecto:
Notice how the endings of the participles are -to or -cho.
Special case: verb "pudrir/pudrirse" (to rot/to go off)
This verb doesn't change the ending to -to or -cho; it keeps the irregular form -ido, however the -u from the stem changes to -o.
Pudrir -> podrido
"Si hubieras dejado la carne fuera del frigorífico, se habría podrido."
(If you had left the meat outside the fridge, it would have gone off.)
To revise irregular participles see Irregular past participles ending in -to/-cho
See also:
1. Conjugate haber in El Condicional Simple (conditional)
2. Irregular past participles
3. Double past participles
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