¿Para qué se usan?
El uso de una condicional significa que una acción depende de otra. Las condicionales se
utilizan para hablar sobre situaciones reales o irreales. En general, las frases condicionales
llevan la palabra if (Si) o Unless (A no ser que...).
Hay cuatro tipos de frases condicionales y el uso de uno u otro refleja la probabilidad de la acción.
● Condicional Types:
○ Zero Conditional : Se usa este tipo de condicional cuando la condición y el resultado siempre es verdad, como por ejemplo los hechos científicos.
NOTA: Podemos cambiar el orden de las frases sin cambiar el significado.
○ First Conditional: Este tipo de condicional se utiliza para el futuro y en los casos en que es muy probable que la condición pasará.
○ Second Conditional: Se utiliza el tipo 2 para expresar una posibilidad irreal en el presente, como un deseo o un sueño, o para una acción en el futuro no tan probable.
○ Third Conditional: A diferencia de los tipos 1 y 2, se utiliza el tercer tipo condicional cuando hablamos de una condición en el pasado que no ha sucedido.
● Expressions of time:
○ After: Antes.
○ Before: Después.
○ By the time: En el momento.
○ The moment: El momento.
○ As soon as: Tan pronto como.
○ Once: Una vez.
○ Unless: A no ser.
Ejercicios
1. Complete the sentences with the verbs below. Use the Zero Conditional.
● I _______________ good if I exercise.
● If you _______________ water, it becomes ice.
● If you _______________ plants, they die.
● The dog always barks if it _______________ a noise.
● The baby _______________ unless she eats enough.
● If he _______________, he usually asks me.
2. Complete the sentences with the correct form of the verbs below. Use the First Conditional.
● If Susan finishes her homework. She _______________ to the cinema with her
friends.
● People won’t like you if you _______________ them nicely.
● Unless Joe _______________ his things with others, they won’t let him use theirs.
● We will have a huge problem if we _______________ a compromise soon.
● If you move far away, I _______________ you.
● You won’t succeed if you _______________ so quickly.
3. Complete the sentences with the correct form of the verbs in brackets. Use the First
Conditional.
● Everyone _____________ (make) fun of you if you ____________ (wear) that silly hat.
● Lee _____________ (feel) left out if you _____________ ( not tell) her your news.
● They _____________ ( not come ) to the party unless you _____________ (invite) Scott.
● If Charlotte _____________ (continue) to behave like that, she _____________ (not have) any
friends.
● Unless we _____________ (help) each other, we _____________ (not finish) the project in time.
● Our friends _______________ (not buy) us tickets unless we _______________ (give) them money.
4. Match the conditions in A to the results in B to form sentences in the Second Conditional.
A
● If I knew how to speak Portuguese,
● If people weren’t so selfish,
● If my sister were more confident,
● If I went out more,
● If I had a dog,
● If Tim apologised,
B
● The world would be a better place.
● you would be happier.
● I would care for it.
● she would get to know more people.
● I would forgive him.
● I would go to Brazil
5. Choose the correct answer to complete the sentences in the Second Conditional.
● If more people _______________ (look after) their neighbourhoods, the city would be
much cleaner.
● I wouldn’t talk about Lucy like that if I _______________ (be) you.
● If Jack acted more responsibly, people _______________ (trust) him.
● You _______________ (enjoy) the hot weather if you lived in India.
● Ellie _______________ (make) so many mistakes if she took our advice.
● I would play tennis with you if I _______________ (have) so much work to do.
6. Complete the sentences in the Third Conditional with the words below.
● If Lily _______________ spoken to me, we would have reached a compromise. Unfortunately, she
didn’t.
● More people would _______________ moved to our neighbourhood if they had built a park nearby.
● Fiona wouldn’t have been embarrassed if everyone _______________ looked at her when she walked
in.
● If we had spoken to the new student, he _______________ have felt left out.
● If William had been less pushy, he _______________ have been more popular at school.
7. Complete the sentences in the Third Conditional.
● I would have gone to his party if he _______________ (invite) me.
● If Lisa hadn’t lied to me so many times, I _______________ (believe) her.
● If Rose and Ben _______________ (take) my advice, they wouldn’t have got in trouble.
● Mark _______________ (enjoy) the party if he had known more people.
● If we _______________ (not work) together, we wouldn’t have achieved our goal.
● The children _______________ (hurt) each other if their teacher hadn’t stopped them.
8. Choose the correct answer.
● After / Before Dan joins the football team, he will meet new people.
● By the time / The moment I get a text message, I reply.
● Don’t worry. Everything will be ready by the time / If I arrive.
● As soon as / Before I’m old enough, I’ll get a driving licence.
● I’ll call you by the time / before I set off.
● Once / Unless I finish my project, I’ll have more time.
● I’ll give you the information when /before I get it.
9. Complete with the Conditionals verbs.
● If you _______________ (share), people _______________ (share) you.
● If my friend _______________ (wear) something unattractive, I _______________ (tell) her.
● After I _______________ (get), I _______________ (walk) the dog.
● If you _______________ (treat) people better, you _______________ (have) more friends.
● If you _______________ (help) me, I _______________ (do) better.
● You _______________ ( not be) happy , if you _______________ (have) friends.
● She _______________ (not invite) you if you _______________ (not apologise) to her.
10. Translate into english.
● Si no eres agradable con ella, ella no te ayudará.
● _______________
● Me siento mal si alguien se ríe de mi.
● _______________
● Yo siempre estoy preparada para salir, a no ser que esté muy cansada.
● _______________
● La gente te respeta si tú te levantas por ti mismo.
● _______________
● Si yo fuera tú, me comprometería.
● _______________
● No hubiéramos ganado si tú no hubieras marcado gol.
● _______________
● Si ella grita, los padres no la escucharán.
● _______________
● Si no te disculpas con tu hija, ella estará enfadada contigo.
● _______________
● Si tú eres una persona amigable, tú harás amigos fácilmente.
● _______________
● Si ella no ha recogido su habitación, ella no tendrá su móvil.
● _______________
● No compartirán habitación hasta que no se lleve bien con su hermana.
● _______________
● En el momento en el que hubieras sido considerado, hubiéramos cambiado de
opinión.
● _______________
● Tú no estarías desempleado si hubieras sido responsable.
● _______________
11. Write here all the vocabulary that you don’t know and translate
