Real Future Possibility
The First Conditional talks about real, possible situations in the future. The condition might happen — it’s not imaginary. If the condition is true, the result will follow.
Real possibility
Something that could genuinely happen.
If it rains, I ‘ll take an umbrella.
Warnings
Consequences of an action.
If you touch that, you ‘ll burn yourself.
Promises
What you’ll do if something happens.
If you help me, I ‘ll help you.
Plans
Future plans with conditions.
If I pass the exam, I ‘ll celebrate.
Formula
Structure — two clauses
If+Present Simple, subject+will+base verb
⚠️ The IF clause uses Present Simple — NEVER will in the if clause!
Examples (both clause orders)
If you study hard, you ‘ll pass.
If clause first → comma
You ‘ll pass if you study hard.
Result first → no comma needed
If she doesn’t hurry, she ‘ll miss the bus.
Negative condition
Unless you apologise, I won’t forgive you.
unless = if not
✗ Wrong
If it will rain, I’ll stay home.
Never use WILL in the if clause!
✓ Correct
If it rains, I’ll stay home.
IF clause = Present Simple
💡 Memory Hack
The “will allergy” rule
If and will are allergic to each other — they can’t be in the same clause. The if clause gets Present Simple (real time pretends to be now). Will goes in the other clause. Think: “if = no will, other clause = will.” Simple as that.