Zero Conditional (General Truths):
• If you don't sleep, you feel tired.
• If you mix blue and yellow, you get green.
• If you drop a glass, it breaks.
First Conditional (Future Possibilities):
• If it rains tomorrow, we will cancel the picnic.
• If she studies, she will pass the exam.
• If I have time, I will visit you.
⚠️ Key Difference:
• Zero Conditional = 100% true (scientific facts, habits)
• First Conditional = Possible future events (not guaranteed)
💡 Memory Trick:
🧊 ZERO = ZERO chance of being false (always true)
🎯 FIRST = The FIRST future possibility