Zero Conditional
If you heat water to 100°C, it ______.
If you heat water to 100°C, it BOILS.
If it rains tomorrow, we ______ inside. (stay)
If it rains tomorrow, we WILL STAY inside.
If I had a pet dragon, I ______ it every day. (play with)
If I had a pet dragon, I WOULD PLAY WITH IT it every day. (play with)
We use the Zero Conditional...
to talk about facts, instructions and rules.
(If + present simple, present simple)
If you touch fire, you ______ hurt. (get)
If you touch fire, you GET hurt.
If you study, you ______ the test. (pass)
If you study, you WILL PASS the test.
If she were taller, she ______ basketball. (play)
If she were taller, she WOULD PLAY basketball.
We use the First Conditional...
to talk about possible situations and their consequences.
(If + present simple, will + base verb)
If the sun shines, the day ______ hot. (be)
If the sun shines, the day IS hot.
If they are late, we ______ without them. (start)
If they are late, we WILL START without them.
If we lived on the moon, we ______ very light. (feel)
If we lived on the moon, we WOULD FEEL very light.
We use the Second conditional...
to talk about dreams, wishes, or things that are not true right now.
(If + past simple, would + base verb)
If you don’t sleep enough, you ______ tired. (feel)
If you don’t sleep enough, you FEEL tired.
If she finishes her homework, she ______ TV. (watch)
If she finishes her homework, she WILL WATCH TV.
If I saw a ghost, I ______. (run away)
If I saw a ghost, I WOULD RUN AWAY.
In Zero Conditional we use the present simple in:
- one half of the sentence
or
- both halves of the sentence
Both halves of the sentence
If people eat too much sugar, they ______ cavities. (get)
If people eat too much sugar, they GET cavities.
If we don’t leave now, we ______ the bus. (miss)
If we don’t leave now, we WILL MISS the bus.
If you spoke Japanese, you ______ in Tokyo. (be able to live)
If you spoke Japanese, you WOULD BE ABLE TO LIVE in Tokyo.
In First Conditional we use "will" in the half of the sentence with if. ¿True or False?
False — In the first conditional, we do NOT use "will" in the if-clause.
Correct structure:
If + present simple, will + base verb
Example:
✅ If it rains, we will stay inside.
❌ If it will rain, we stay inside.