This document outlines the different types of conditional sentences in English including zero/universal conditionals, first conditionals, second conditionals, and third conditionals. It provides the form, use, examples, and notes for each type of conditional sentence. General facts about conditional sentences such as changing the order of clauses and common connectors like "unless" and "provided" are also covered at the end.
2. TYPE ZERO / UNIVERSAL
FORM
IF + Present,
Present / Imperative
USE
True / scientific facts
Instructions
3. EXAMPLES
If you put paper on a fire, it burns
If the phone rings, answer it
4. FIRST CONDITIONAL (TYPE 1)
FORM
IF + Present,
WILL
(Must / can / may)
USE
Likely / probable results
Promises, warnings, threats
5. EXAMPLES
If we dont leave now, well miss the train
If you pass your exam, Ill give you a job
6. SECOND CONDITIONAL (TYPE 2)
FORM
IF + Past simple,
WOULD
(Could / Might)
USE
Unreal/Improbable situations
(Conditions wont be met)
Advice / suppositions contrary to known facts
7. EXAMPLES
If you did more exercise, youd feel better
If I were you, I wouldnt drive so fast
If she was / were taller, she would play basketball
NOTES
If I were you (Written / formal language)
If I were / was you (spoken language)
If he / she / it were (more usual)
If he / she / it was (more colloquial)
8. THIRD CONDITIONAL (TYPE 3)
FORM
IF + Past perfect,
WOULD HAVE + Past Participle
(Could / Might)
USE
Impossible situations
(Speculation about the past)
9. EXAMPLES
If I had had your address,
(Id had)
I would have sent you a postcard
(Id have)
10. MIXED CONDITIONALS
To talk about past events or actions that have a
result in the present, we can mix the second
and the third conditional:
If I had passed all my exams, I would be on the
beach now.
11. GENERAL FACTS
We can exchange the order of the clauses
If you go, Ill go
Ill go if you go
12. Connectors
UNLESS = IF NOT
A menos que / a no ser que
You wont pass if you dont study
You wont pass unless you study
PROVIDED / PROVIDING (THAT)
Con tal de que
ON CONDITION (THAT)
A condici坦n de que
IN CASE Por si
ASSUMING / SUPPOSING (THAT)
Suponiendo que
AS LONG AS / SO LONG AS Siempre que
EVEN IF
WHETHER