The document discusses different types of conditional sentences in English. It provides examples of zero conditional sentences using present tense, first conditional sentences using will/won't and present tense, second conditional sentences using would and the infinitive or past simple tense, and third conditional sentences using would have and the past perfect tense. The document is teaching English grammar rules for forming conditional sentences based on the conditions being real, possible, hypothetical or impossible.

1. By: Carmen Rojo and Ester Dupuy

2. ZERO CONDITIONAL
PRESENT + PRESENT
If/When you have a special form of this gene, your heart
works better.
Activities:
If a player makes five fouls, he leaves the game.
Players hit a ball with a racket when they play this game.
You need good balance when you do this winter sport.
If a player wants to score a goal, he throws the ball.

3. FIRST CONDITIONAL
WILL/WON’T + PRESENT
Activities:
We will go jogging today unless it rains.
If you watch professional tennis on tv you won’t learn a lot.
We will identify future football stars if we use this method.
Unless you work hard, you won’t win a medal.
If there’s a basketball game on tv tonight, will you watch it?

4. SECOND CONDITIONAL
WOULD + INFINITIVE, PAST SIMPLE
Activities:
He would do well if he practised more.
If i were you, i would train with a coach.
Would you like to meet a famous athlete if you got a
chance?
He thought i would exercise more if i had the game.

5. THIRD CONDITIONAL
WOULD +PRESENT PERFET SIMPLE - PAST PERFET SIMPLE
ACTIVITIES:
He would have won the game if he had tried harder.
If she had lost the final tennis match at winbledon in 2009 her
sister would have won.
If the team had won the game, they would have had a party.
They _____ (wait, not) in the rain, had you called them to tell
them you were going to be late.
Answer:wouldn't have waited

6. THE END