• What it is (qué es)
• More examples (más ejemplos)
• Could have / might have instead of would have
• Questions and negatives (preguntas y negativos)
• Summary of all three conditionals (resumen de los tres condicionales)
• Mixed conditionals (condicionales mixtos)
  • Past cause, present result (causa pasada, resultado presente)
  • Present cause, past result (causa presente, resultado pasado)

What it is (qué es)

The third conditional is used to talk about imaginary situations in the past - things that didn't happen, and their imaginary consequences. It is built with if + past perfect, followed by would have + past participle.

🔹 El tercer condicional se usa para hablar de situaciones imaginarias en el pasado - cosas que no ocurrieron, y sus consecuencias imaginarias. Se forma con if + past perfect, seguido de would have + participio pasado.

If I had studied harder, I would have passed the exam.
(Si hubiera estudiado más, habría aprobado el examen).

If she had taken the train, she wouldn't have been late.
(Si ella hubiera cogido el tren, no habría llegado tarde).

The action didn't happen. We are imagining a different past.

🔹 La acción no ocurrió. Estamos imaginando un pasado diferente.

More examples (más ejemplos)

If I had known about the party, I would have gone. (Si hubiera sabido de la fiesta, habría ido).

If we had left earlier, we would have caught the flight. (Si hubiéramos salido antes, habríamos cogido el vuelo).

If he hadn't eaten so much, he wouldn't have felt sick. (Si no hubiera comido tanto, no se habría sentido mal).

If it hadn't rained, we would have gone to the beach. (Si no hubiera llovido, habríamos ido a la playa).

Could have / might have instead of would have

We can use could have or might have instead of would have:

🔹 Podemos usar could have o might have en lugar de would have:

If I had arrived earlier, I could have helped. (Si hubiera llegado antes, podría haber ayudado).

If she had applied, she might have gotten the job. (Si se hubiera presentado, quizás habría conseguido el trabajo).

Questions and negatives (preguntas y negativos)

What would you have done if you had missed the train?
(¿Qué habrías hecho si hubieras perdido el tren?)

If I hadn't moved to this city, I wouldn't have met my wife.
(Si no me hubiera mudado a esta ciudad, no habría conocido a mi mujer).

Summary of all three conditionals (resumen de los tres condicionales)

First: If + present, will + infinitive => possible future
If it rains, I'll stay home.

Second: If + past simple, would + infinitive => imaginary present/future
If I had more money, I would travel.

Third: If + past perfect, would have + past participle => imaginary past
If I had studied, I would have passed.

Mixed conditionals (condicionales mixtos)

Sometimes we mix the second and third conditionals. This happens when an imaginary past action has a present consequence, or vice versa.

🔹 A veces mezclamos el segundo y el tercer condicional. Esto ocurre cuando una acción imaginaria del pasado tiene una consecuencia presente, o viceversa.

Past cause, present result (causa pasada, resultado presente)

If I had studied medicine, I would be a doctor now. (Si hubiera estudiado medicina, ahora sería médico).

Structure: if + past perfect, would + infinitive.

Present cause, past result (causa presente, resultado pasado)

If I spoke French, I would have applied for that job. (Si hablara francés, me habría presentado a ese trabajo).

Structure: if + past simple, would have + past participle.