2. Conditionals Type 0 (true conditional)
If you heat water it boils.
Express something which is always true, laws of
nature.
+ SIMPLE PRESENT
IF + SIMPLE PRESENT

3. Conditionals Type 1.
(real conditional)
If you study hard, you will get a good
mark
Express a possible
situation in the present
or future.
IF + SIMPLE PRESENT + SIMPLE FUTURE

4. Conditionals Type 2
(present unreal)
If you studied hard,
you would get a
good mark
Express an imaginary or
unlikely situation in the
present or future.
IF + SIMPLE PAST + WOULD + VERB INFINITIVE

5. Conditionals Type 2
WITH VERB TO BE.
If I were rich ,
I would buy a castle.
IF + SIMPLE PAST WOULD + VERB INFINITIVE
If he were rich , He could buy a castle.
WOULD + VERB INFINITIVE
COULD + VERB INFINITIVENOTE: If I, he, she it was
(socially accepted)

6. Conditionals Type 3.
If you hadn't been late
for work so often,
they wouldn't have
fired you.
Express imaginary situations
which are contrary to facts in the
past. It can be used to talk about
wishes and regrets.
IF + PAST PERFECT WOULD HAVE + VERB PAST PARTICIPLE