1. If it *rains*(rain) tomorrow, we will cancel the picnic.
2. If I *finish*(finish) work early, I will go to the cinema.
3. She will fail the exam if she *does not study*(not study) tonight.
4. If he *eats*(eat) too much ice cream, he will get a stomachache.
5. They will come to the party if they *get*(get) an invitation.
6. If we *do not hurry*(not hurry), we will miss the train.
7. If you *water*(water) the plants, they will grow faster.
8. She will be happy if you *give*(give) her a present.
9. If he *practices*(practice) more, he will become a great musician.
10. We will go for a walk if it *stops*(stop) snowing.
11. If you *do not wear*(not wear) warm clothes, you will catch a cold.
12. They will buy a new car if they *save*(save) enough money.
13. If I *see*(see) Sarah, I will give her your message.
14. If you *need*(need) help, just call me.
15. If the weather *is*(be) nice, we will have a barbecue.
Exercise 2: First Conditional Sentences – Negative Form
1. If you *do not study*(not study) for the test, you will fail.
2. If it *does not rain*(not rain) tomorrow, we will play soccer.
3. She will not go to the party if she *does not feel*(not feel) well.
4. We will not be late if we *leave*(leave) now.
5. If you *do not buy*(not buy) a ticket, you cannot enter the concert.
6. If he *does not apologise*(not apologise), she will be upset.
7. We will not have dessert if we *do not finish*(not finish) our dinner.
8. If they *do not call*(not call) us, we will not know the news.
9. If she *does not wear*(not wear) a coat, she will be cold.
10.If the bus *does not come*(not come) on time, we will take a taxi.
11. If you *do not pay*(not pay) the bill, they will cut off the electricity.
12. She will not pass the exam if she *does not study*(not study) harder.
13. They will not win the game if they *do not practice*(not practice) enough.
14.If you *do not book*(not book) a hotel, we will have nowhere to stay.
15. If it *does not snow*(not snow) this weekend, we will not go skiing.