📚 Zero Conditional (Type 0)
We use the Zero Conditional to describe things that are always true or generally happen under certain conditions — especially for facts, routines, or scientific truths.
If / When + Present Simple, Present Simple
Examples:
- If you skip breakfast, you feel hungry by mid-morning.
- Metal expands when you heat it.
- When people don't sleep enough, they become irritable.
✏️ Zero Conditional Exercise
1. If you (mix) blue and yellow, it (make) green.
2. Plants (die) if they (not get) enough sunlight.
3. If a student (talk) during the exam, the teacher (ask) them to leave.
🔮 First Conditional (Type 1)
We use the First Conditional to talk about possible future events or situations, and their likely outcomes. These are real possibilities based on current conditions.
If / When + Present Simple, Will + Infinitive
Examples:
- If she studies tonight, she'll pass the quiz tomorrow.
- They'll get a seat if they arrive early.
- When I get home, I'll make dinner.
Alternative Conjunctions: You can also use unless, as long as, as soon as, or in case instead of "if".
"I'll call you as soon as I arrive."
"Unless it's urgent, don't call me."
"I'll call you as soon as I arrive."
"Unless it's urgent, don't call me."
📝 First Conditional Exercise
1. If the shop (close) early, we (go) somewhere else.
2. He (get) stuck in traffic if he (leave) after 8 a.m.
3. If they (practice) every day, they (improve) quickly.
4. You (burn) the food if you (not watch) the oven.