General English B2 · Lesson 4B

Grammar Bank

The rules behind this lesson — form, use, model sentences and the mistakes to avoid.

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Grammar focus of this lesson

zero & first conditionals + future time clauses

1 structure

Zero and first conditionals · future time clauses
Real conditions and real future timing.
I've got this
Rules & form
- ›Zero: if / when + present, present — general truths.
- ›First: if + present, will / may / can — likely future.
- ›Time clauses (when, as soon as, until, before, after) take the present, not will.
- ›unless = if not · provided that / as long as = only if.
Examples
- “If you heat water to 100°C, it boils.”
- “If the numbers hold, we'll expand in Q3.”
- “I'll send it as soon as I get the approval.”
Watch out · as soon as I will arrive ✗ → as soon as I arrive ✓.
Your own example