1) Types of
Conditional
2) The
Negative conditional
1)Types of
Conditional:
-
There
are three (03) main types of conditional sentenses:
|
Type of
the conditional |
Form of the if-clause
|
Form of the main clause
|
It is used
|
Example
|
|
Type I |
if + present |
will + stem |
to express that something will happen if a certain
condition is fulfilled. |
If
you
do
it, he
will
understand
you. |
|
Type II |
a) if + past simple |
would + stem (for the two) |
to express the probable result of a certain condition
that we suppose or imagine. |
He
would
come
if
you
called
him. |
|
b) if + were (for all the persons) |
to express imaginary or impossible conditions. |
If
I
were
rich I
would buy
a plane. |
||
|
Type III |
if + past perfect |
would have + past participle |
to express impossible ideas. We know the condition was
not fulfilled, but we like to imagine the result if... |
He
would
have helped
you
if
you had
asked
him. (but he didn’t help you!
Why?
Because you didn’t ask him). |
2) The Negative
conditional:
We
can express a negative condition with
unless
which
is usually close in meaning to "if not" but cannot be universally
substituted for if not.
e.g.
You will
fail
unless
you work
hard.
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