EC 4 Conditionals

Form - How is the structure formed?

Form If-Clause(Condition)
verb form:
Main Clause (Result)
If + present, present present
 If I get enough sleep,
present
 I generally feel good.
If + present, will + verb present
 If you come to the party,
future
  you will have fun.
If + past, *would + verb simple past
 If I were you,
would + simple form verb
 I would apologize to her.
If + had + p.p.,
*would have + p.p.
past perfect
  If you had studied,
would have + past participle
you would have passed the test.

*would/could/might are all possible

For example: If I had more money, I would/could/might buy a car.

If she had not moved to New York, she would/could/might not have met her husband.

--Note the use of "not." "Not" comes after the modal (will not, would not, could not, might not).

The "if" conditional is a dependent clause. It has the following structure:

If      X     , (then)      Y     .

dependent clause   main clause

However, the structure can also be changed.

     Y      if      X     .

main clause   dependent clause

If Maria doesn't come to the party, John will be sad.

          dependent clause                       main clause

OR:

John will be sad if Maria doesn't come to the party.

    main clause                dependent clause

Meaning - what does it mean?

If Maria doesn't come to the party, John will be sad.

          dependent clause                       main clause

John will not be sad unless Maria doesn't come to the party. In other words, Maria not coming to the party, will make John sad. In this case, the dependent clause(If Maria doesn't come to the party) affects the main clause (John will be sad).

More examples:

If I don't get that job, (then) life will be difficult.

     dependent clause                main clause

If we don't eat good food, (then) we will not feel good.

     dependent clause                       main clause

If Sam comes to my office, (then) I can work with him on the project.

     dependent clause                        main clause

In the examples above, the main clause is the result of the dependent clause. This means that the clause will not happen, unless the dependent clause happens.

Use - when/why is it used?

There are 4 conditionals. Each one is used for different reasons. See the chart below again.

Form If-Clause(Condition)
verb form:
Main Clause (Result)
ZERO CONDITIONAL
If + present, present
present
 If I get enough sleep,
present
 I generally feel good.
FIRST CONDITIONAL
If + present, will + verb
present
 If you come to the party,
future
 you will have fun.
SECOND CONDITIONAL
If + past, *would + verb
simple past
 If I were you,
would + simple form verb
I would apologize to her.
THIRD CONDITIONAL
If + had + p.p.,
*would have + p.p.
past perfect
 If you had studied,
would have + past participle
  you would have passed the test.

There is a Zero Conditional, First Conditional, Second Conditional, and Third Conditional.

Zero Conditional: Used when the result will always happen. It is used for facts or general truths/general situations.

Example:

Most people gain weight if they eat too much.


First Conditional: Used to talk about things that might (or probably will) happen in the future. This conditional describes things that could easily be true. It is used for specific situations.

Example:

If it rains, we will cancel the picnic.

If he forgets his wife's birthday this year, she will be upset.


Second Conditional:

  1. Used to talk about things in the future that will probably NOT happen.
  2. Example:

    If I became a famous movie star, I would travel all around the world making movies. (I probably will not become a famous movie star.)

  3. Used to talk about things in the present that are impossible because they are not true.
  4. Example:

    If I had pasta, I would make spaghetti. (But I don't have pasta, so I can't make spaghetti.)


Third Conditional: Used to talk about something that did NOT happen in the PAST to imagine the result.

Example:

If I had woken up earlier, I would not have been late to work. (But I did NOT wake up earlier, so I WAS late to work.)

For more information on conditionals and practice exercises, go to http://www.englishpage.com/modals/modalintro.html