• What it is (qué es)
• First conditional vs. second conditional (primer condicional vs. segundo condicional)
• Were instead of was (were en lugar de was)
• The expression "If I were you" (la expresión "If I were you")
• Could and might instead of would (could y might en lugar de would)
• Questions and negatives (preguntas y negativos)
• Summary of conditionals so far (resumen de condicionales)

What it is (qué es)

In Book 3 we learned the first conditional for possible or probable situations: If it rains, I'll stay home. The second conditional is for imaginary or unlikely situations. It is built with if + past simple, followed by would + infinitive.

🔹 En el Libro 3 aprendimos el primer condicional para situaciones posibles o probables: If it rains, I'll stay home. El segundo condicional es para situaciones imaginarias o improbables. Se forma con if + past simple, seguido de would + infinitivo.

If I had more money, I would travel the world.
(Si tuviera más dinero, viajaría por el mundo).

If she lived in London, she would visit museums every week.
(Si ella viviera en Londres, visitaría museos cada semana).

Even though we use the past simple after if, we are NOT talking about the past. We are talking about an imaginary present or future.

🔹 Aunque usamos el past simple después de if, NO estamos hablando del pasado. Estamos hablando de un presente o futuro imaginario.

First conditional vs. second conditional (primer condicional vs. segundo condicional)

The first conditional is for real possibilities. The second conditional is for imaginary situations.

🔹 El primer condicional es para posibilidades reales. El segundo condicional es para situaciones imaginarias.

If I have time tomorrow, I'll help you. (first conditional - it's possible)

If I had a million dollars, I would buy a yacht. (second conditional - imaginary)

If it rains, I'll stay home. (first conditional - it might rain)

If I were the president, I would change many things. (second conditional - I'm not the president)

Were instead of was (were en lugar de was)

In the second conditional, it is traditional to use were instead of was for all persons, especially with I, he, she, it:

🔹 En el segundo condicional, es tradicional usar were en lugar de was para todas las personas, especialmente con I, he, she, it:

If I were rich, I would buy a big house. (Si yo fuera rico, compraría una casa grande).

If she were here, she would know what to do. (Si ella estuviera aquí, sabría qué hacer).

In everyday speech, many people say If I was rich... This is acceptable, but If I were rich... is considered more correct, especially in writing.

🔹 En el habla cotidiana, mucha gente dice If I was rich... Esto es aceptable, pero If I were rich... se considera más correcto, especialmente al escribir.

The expression "If I were you" (la expresión "If I were you")

We use If I were you to give advice. It means yo en tu lugar or si yo fuera tú:

🔹 Usamos If I were you para dar consejos. Significa yo en tu lugar o si yo fuera tú:

If I were you, I would talk to her. (Yo en tu lugar, hablaría con ella).

If I were you, I wouldn't accept that job. (Yo en tu lugar, no aceptaría ese trabajo).

Could and might instead of would (could y might en lugar de would)

We can use could or might instead of would for possibility:

🔹 Podemos usar could o might en lugar de would para expresar posibilidad:

If I had more time, I could learn another language. (Si tuviera más tiempo, podría aprender otro idioma).

If we moved to the coast, we might go to the beach every day. (Si nos mudáramos a la costa, puede que fuéramos a la playa cada día).

Questions and negatives (preguntas y negativos)

What would you do if you won the lottery? (¿Qué harías si ganaras la lotería?)

If I didn't have a job, I would travel. (Si no tuviera trabajo, viajaría).

Would you move to another country if you could? (¿Te mudarías a otro país si pudieras?)

Summary of conditionals so far (resumen de condicionales)

First conditional: If + present simple, will + infinitive => real/possible

Second conditional: If + past simple, would + infinitive => imaginary/unlikely