What is the “zero conditional” in English? Use it when something is ALWAYS true. Formula: If Present Simple, Present Simple -If you heat water to 100°C, it boils. -If you don’t eat, you get hungry. -If the sun goes down, it gets dark. It’s like a scientific law - no exceptions. If X happens, Y always follows. 💡 TIP: Use it to talk about facts, routines, or anything that happens every time. | English At The Ready