We use the first conditional,
when we are referring to something that is possible or likely to
because its possible to fulfil
E.g. If we hurry, we will catch
Form + complement
having a picnic.
||is to a job interview,
Note: The verb in the if-clause
is almost always in the present simple.
e.g. If you call him, he will
But we can use the future tense
will in the if-clause, when we are making a request.
e.g. If you will wait just
a moment. I will find someone to help you.
We can also use the
present continuous ( are doing) or the present
perfect (have done) in the if clause.
e.g. If we're
expecting visitors, the house will need a good clean.
e.g. If you have
finished with the computer, I'll put it away.
We can use the first conditional
in offers and suggestions.
e.g. If you need a ticket,
I can get you one.
e.g. If you feel like travelling
to Brazil, we can go there in August.
we can also use the first conditional,
in warnings and threats.
e.g. If you go out with this
clothes, you'll make yourself ill.
e.g. If you don't apologise,
I'll never speak to you again.
We sometimes use the present
simple in both clauses (if-clause and main clause).
e.g. If you
heat water, it boils.
e.g. If you press this switch,
the computer comes on.