The document explains the structure and usage of conditional sentences in English, categorizing them into three types: present, past, and past perfect conditionals. Each category is illustrated with examples in both English and Spanish, demonstrating how different situations can be expressed using 'if' clauses. The conditional forms include present tense, future implications, and hypothetical situations depending on the time frame and context.

1. ZERO FIRST SECOND & THIRD
ANDRES CAMILO CASTRO SISA
1101 JT
2012

2. IF CLAUSE MAIN CLAUSE
IF + PRESENT TENSE PRESENT TENSE
IF YOU FREEZE WATER IT TURNS INTO ICE
 EXAMPLES
 If you freeze water, it turns into ice.
Si congelas el agua, se convierte en hielo.
 If I work too much, I get tired.
Si trabajo demasiado, me canso.
 If I have time, I usually go to the movies.
Si tengo tiempo, generalmente voy al cine.
 If she eats hamburgers, she gets an allergy.
Si ella come hamburguesas, le da alergia.
 If they come here, they always bring a present.
Si ellos vienen aquí, siempre traen un regalo.
 If she doesn't know the answer, she keeps silent.
Si ella no sabe la respuesta, se mantiene en silencio.
 If we don't go out on Saturdays, we rent a video and stay home.
Si no salimos los sábados, alquilamos un video y nos quedamos en casa.

3. IF CLAUSE MAIN CLAUSE
IF + PRESENT TENSE WILL / CAN / MAY / MUST + VERB
IF IT RAINS TODAY I’LL STAY AT HOME
• EXAMPLES:
• If it rains today, I'll stay at home.
Si llueve hoy, me quedaré en casa.
• If he is busy now, I will come back tomorrow.
Si está ocupado ahora, regresaré mañana.
• If I have time, I'll visit my parents this afternoon.
Si tengo tiempo, visitaré a mis padres esta tarde.
• If it is warm tomorrow, we'll go to the beach.
Si está caluroso mañana, iremos a la playa.
• If it is cold, you must wear warm clothes.
Si está frío, debes usar ropa abrigada.
• If he doesn't do his homework, he can not go to the party.
Si él no hace su tarea, no puede ir a la fiesta.

4. IF CLAUSE MAIN CLAUSE
IF + PAST SIMPLE WOULD / COULD / MIGHT + VERB
IF I WON THE LOTTERY I WOULD TRAVEL AROUND THE
WORLD
 EXAMPLES
 If I won the lottery, I would travel around the world.
Si ganara la lotería, viajaría por todo el mundo.
 If I were in Brazil, I would go to Rio de Janeiro.
Si yo estuviese en Brasil, iría a Río de Janeiro.
 If I were you, I would buy that car.
Si yo fuese tú, compraría ese auto.
 If he were in my place, he wouldn't do this.
Si él estuviese en mi lugar, no haría esto.
 If I had more money, I would buy a nice apartment.
Si yo tuviese más dinero, me compraría un lindo apartamento.
 If she had more time, she would travel more often.
Si ella tuviera más tiempo, viajaría más a menudo.
 If it were not raining, we could go out.
Si no estuviese lloviendo, podríamos salir.

5. IF CLAUSE MAIN CLAUSE
IF + PAST PERFECT TENSE WOULD / COULD / MIGHT +
HAVE + PAST PARTICIPLE
IF I HAD WON TH LOTTERY I WOULD TRAVEL AROUND THE
WORLD
 EXAMPLES
 If I had won the lottery, I would have traveled around the world.
Si yo hubiera ganado la lotería, habría viajado por todo el mundo.
 If I had seen him, I would have told him about you.
Si lo hubiese visto, le habría contado acerca de ti.
 If I had known the answer, I would have raised my hand.
Si hubiese sabido la respuesta, habría levantado mi mano.
 If she had come on Saturday, I would have seen her.
Si ella hubiese venido el sábado, la habría visto.
 If they had left earlier, they would have arrived on time.
Si ellos hubiesen salido más temprano, habrían llegado a tiempo.
 If we had studied harder, we might have passed the test.
Si hubiésemos estudiado más duro, podríamos haber aprobado la prueba.
 If you had gone to Brazil, you would have had lots of fun.
Si tu hubieses ido a Brasil, habrías tenido mucha diversión.

6. THANKS