1st conditional – Theory and Practice
Theory
El First Conditional se usa para hablar de situaciones futuras que son posibles o probables. Se emplea para
expresar causa y efecto en el futuro.
Estructura:
If + present simple, will + infinitive
Ejemplos:
- If you study, you will pass the exam. (Si estudias, aprobarás el examen.)
- If it rains, we will stay at home. (Si llueve, nos quedaremos en casa.)
Variaciones:
Se puede invertir el orden:
We will stay at home if it rains.
También se pueden usar otros verbos modales en lugar de Will:
- If you study, you might pass the exam. (Si estudias, quizás apruebes.)
- If you hurry, you can catch the bus. (Si te apuras, puedes alcanzar el autobús.)
Uso:
➡ Para hablar de consecuencias reales o probables en el futuro.
➡ Para dar advertencias o consejos:
- If you don’t wear a coat, you will be cold.
Practice
Complete the following sentences using first conditional.
1. If you ___________ (study), you ___________ (pass) the exam.
2. If it ___________ (rain), we ___________ (stay) at home.
3. If she ___________ (eat) too much, she ___________ (feel) sick.
4. If they ___________ (not hurry), they ___________ (miss) the train.
5. If you ___________ (touch) that wire, you ___________ (get) an electric shock.
6. If we ___________ (not water) the plants, they ___________ (die).
7. If he ___________ (call) me, I ___________ (answer) the phone.
8. If the weather ___________ (be) nice, we ___________ (go) to the beach.
9. If she ___________ (not wear) a jacket, she ___________ (be) cold.
10. If you ___________ (practice) every day, you ___________ (improve) your English.
11. If he ___________ (not apologize), she ___________ (be) angry.
12. If you ___________ (not go) to bed early, you ___________ (be) tired tomorrow.
13. If they ___________ (invite) me, I ___________ (attend) the party.
14. If you ___________ (leave) now, you ___________ (arrive) on time.
15. If she ___________ (not study), she ___________ (fail) the test.
16. If we ___________ (take) a taxi, we ___________ (get) there faster.
17. If you ___________ (not drink) water, you ___________ (get) dehydrated.
18. If the sun ___________ (shine), we ___________ (go) for a walk.
19. If I ___________ (not find) my keys, I ___________ (be) late.
20. If he ___________ (exercise) regularly, he ___________ (be) healthier.
21. If you ___________ (help) me, I ___________ (finish) my work sooner.
22. If she ___________ (not listen) to the teacher, she ___________ (not understand) the lesson.
23. If we ___________ (not leave) now, we ___________ (miss) the bus.
24. If the dog ___________ (bark), someone ___________ (be) at the door.
25. If you ___________ (not wear) sunscreen, you ___________ (get) sunburnt.
26. If he ___________ (not pay) attention, he ___________ (make) mistakes.
27. If you ___________ (eat) too much sugar, you ___________ (get) cavities.
28. If I ___________ (not set) an alarm, I ___________ (wake up) late.
29. If we ___________ (win) the match, we ___________ (celebrate) tonight.
30. If she ___________ (not sleep) well, she ___________ (feel) exhausted.
31. If you ___________ (ask) politely, they ___________ (help) you.
32. If it ___________ (snow), we ___________ (build) a snowman.
33. If they ___________ (not bring) an umbrella, they ___________ (get) wet.
34. If I ___________ (not charge) my phone, it ___________ (turn off).
35. If you ___________ (study) harder, you ___________ (get) better grades.
36. If the store ___________ (not close) early, we ___________ (buy) some groceries.
37. If you ___________ (not finish) your work, you ___________ (not go) out.
38. If I ___________ (see) her, I ___________ (tell) her the news.
39. If you ___________ (not follow) the instructions, you ___________ (fail) the experiment.
40. If he ___________ (drink) too much coffee, he ___________ (not sleep) well.
