ZERO CONDITIONAL
What is zero conditional?
Zero conditional is a structure used to talk
about general truths, that is, things that
always
happen
conditions.
under
certain
given
What’s its structure?
 A zero conditional sentence is made of two clauses: a
main clause and an ‘if’ clause. Both clauses use the
present simple tense. The order of the clauses
doesn’t change the meaning of the sentence
 When the ‘if’ clause goes first, you use a comma
between the clauses. When the main clause goes
first, there’s no need of a comma. Look at the
examples:
'if' clause
main clause
If you heat water at 100 degrees,
it boils.
main clause
'if' clause
Water boils
if you heat it at 100 degrees.
Note:
* You can change ‘if’ for ‘when’ and ‘as soon
as’
* To say ‘if not’, you can use ‘unless’
Exercises
Match the clauses from both columns to create zero
conditional sentences.