I and II
Situations that are always true if something happens. NOTE: This use is similar to, and can usually be replaced by, a time clause using 'when' (example: When I am late, my father takes me to school.) If I am late, my father takes me to school. She doesn't worry if Jack stays out after school.
Conditional 0 is formed by the use of the present simple in the if clause followed by a comma the present simple in the result clause. You can also put the result clause first without using a comma between the clauses. If he comes to town, we have dinner. OR We have dinner if he comes to town.
Often called the "real" conditional because it is used for real - or possible - situations. These situations take place if a certain condition is met.
NOTE: In the conditional 1 we often use unless which means 'if... not'. In other words, '...unless he hurries up.' could also be written, '...if he doesn't hurry up.'. If it rains, we will stay at home. He will arrive late unless he hurries up. Peter will buy a new car, if he gets his raise.
Conditional 1 is formed by the use of the present simple in the if clause followed by a comma will verb (base form) in the result clause. You can also put the result clause first without using a comma between the clauses. If he finishes on time, we will go to the movies. OR We will go to the movies if he finishes on time.
1. If he comes, we will go to lunch. we would go to lunch. we went to lunch.
2. If he studies a lot, he might pass the exam. he would pass the exam. he is going to pass the exam.
3. If she misses the bus, I take her to school by car. I would take her to school by car. she have to walk.
4. He will surely fail his exams if he not work harder. unless he begins to study. if he weren't serious.
5. I leave on Saturdays if she will come to visit. if she comes to visit. if she won't come to visit.
6. She will go crazy if you leaves her. unless she leaves you. if she don't leave you.
7. If this storm gets worse, we will have to go inland. we have to get inland. we must to go inland.
8. Watch out! If you touch that cable, you will get a shock. you shocked. you had a shock.
9. I'm afraid I can't understand you if you speak unclear. unless you speak more clearly. if you don't speak clear
Often called the "unreal" conditional because it is used for unreal - impossible or improbable - situations. This conditional provides an imaginary result for a given situation. NOTE: The verb 'to be', when used in the 2nd conditional, is always conjugated as 'were'. If he studied more, he would pass the exam. I would lower taxes if I were the President. They would buy a new house if they had more money.
Conditional 2 is formed by the use of the past simple in the if clause followed by a comma would verb (base form) in the result clause. You can also put the result clause first without using a comma between the clauses. If they had more money, they would buy a new house. OR They would buy a new house if they had more money.
10. I would buy a new house if I have a lot of money. if I win the lottery. if I inherited a million dollars.
11. If I had known you were in town, I would buy you some flowers! I would have bought you some flowers. I will buy you some flowers.
12. She would live in New York now if she stays. if she had stayed. if she was to stay.
13. They would have bought that new car if they had had the money. if they had the money. if they were having the money.
14. If he were President, he would help the poor more. he will help the poor more. he would have helped the poor more.
15. She would have gone if she had been in your position. if she were in your position. if she was in your position.