Conditionals are sentences with two clauses an
if clause and a main clause
There are four basic types of conditional
to express a simple statement of
fact or to talk about things that are
With zero conditional we express
a general truth or we give advice
If you don’t water flowers, they die.
The present simple is used in both clauses
The first conditional refers to the present and
future. It expresses a possible (real) condition and
its probable result in the future.
In first conditional sentences, the structure is
usually if + present simple and will +
infinitive. It’s not important which clause comes
If the weather is nice, we will go for a walk.
We use the First Conditional to talk about
future events that are likely to happen.
The Second Conditional is used to talk about
'impossible' or unreal situations.The situation
or condition is
improbable, impossible, imaginary, or
contrary to known facts.
The structure is usually if + past simple and
would + infinitive. It’s not important which
clause comes first.
If I knew his number, I would phone him.
PAST TENSE SIMPLE
would + infinitive
We can use the Third Conditional to talk about
'impossible' conditions, impossible because they
are in the past and we cannot change what has
If you had studied harder, you would have passed your test.
PAST PERFECT SIMPLE
would + have + past participle