Conditional sentences are crucial for expressing possibilities and hypothetical situations in English. This guide covers the first, second, and third conditional forms, providing clear examples and explanations for each type. Ideal for English language learners and educators, it helps clarify how to use conditionals effectively in various contexts. The document includes practice exercises to reinforce understanding and application of these grammatical structures.

Key Points

  • Explains the first conditional for likely future events with examples.
  • Covers the second conditional for hypothetical present situations.
  • Details the third conditional for unfulfilled past conditions.
  • Includes practice exercises to enhance understanding of conditionals.
Abrham Ab19
2 pages
Language:English
Type:Study Guide
English as Second Language
Abrham Ab19
2 pages
Language:English
Type:Study Guide
English as Second Language
102
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1
Conditionals
First, second and third conditional
There are three main types of conditional
sentences.
First conditional (or Type
1
conditional)
If I
see
Andrew at the meeting, I'll give him your message.
present simple future
simple
To talk about something that is quite likely to happen in the future.
It
is
very
possible that
I will see Andrew at the meeting, in which case I'll give him
your
message. The condition
is quite likely to be
fulfilled.
The if clause is usually in the present simple. However, we can also use: present
continuous, present perfect simple, present perfect continuous, can, should:
If he's still waiting for you, he'll be very angry.
If you're coming out with us tonight, you'll need to be ready by 7 o'clock. If Rob's
received your letter, I'm sure he'll phone you today.
If it's been raining in the night, you'll have to wear wellingtons.
Second conditional (or Type
2
conditional)
If my parents
were
alive, they
would
be
very proud of me now. [they'd]
past simple would +
infinitive
The if clause is usually in the past simple. However, we can also use the past continuous, could, or
were/was
If you were coming with me, I'd give you a lift. If I could have the day
off, I'd come with you.
If you were to ask Steve, I'm sure he would do it.
The main clause usually has the modal would + infinitive. However, the modals could
and might are also used and the infinitive can be in the continuous form:
If we had more money, we wouldn't be living here.
To talk about a present situation which is impossible: a hypothetical
situation.
The condition
cannot be fulfilled because my parents are not
alive.
If she
changed
her job, she would be much happier.
To talk about a future event that is unlikely to happen. The speaker does
not
expect her
to change her job. That is, it is unlikely that the condition will
be fulfilled.
Third conditional (or Type
3
conditional)
If she
had
worked
harder, she would have passed
the exams.
past perfect would + perfect
infinitive
To talk about something in the past that did not happen. She didn't work
harder
and she
didn't pass her exams.
It
is an unfulfilled condition in the
past.
Notes
• In conditional sentences, the conditional clause can be the first or second clause in
the
sentence, although it is more often the first
clause.
When the conditional clause comes first, it is followed by a comma. When it comes
second,
there is no
comma.
If I get home early enough, I'll make a special dinner.
I'll make a special dinner
if
I get home early enough.
• The tense and verb forms given here are the ones most commonly used in
conditional
2
sentences. However, it is possible to use other tenses .
Practice 1
The following sentences are first, second or third conditional. Put the
verbs
in brackets
into the appropriate
form.
1. We wanted to go out yesterday but the weather was terrible.
If
it
______
(be) a nice day, we
_________
(go) for a
picnic.
2. Why don't you explain everything to him?
If
you
______ (not tell) him the truth, I'm
sure
you
(regret) it one
day.
3. Jennifer was here not long ago. If
you___________
(come round) earlier,
you.............................
(see)
her.
4. The government is expecting to win the next election, but if
it................................................
(lose),
the Prime
Minister
............................................
(resign) from
politics.
5, I am so glad that you took me to your friend's party.
If
we
..............................................
(not go) there,
I.....................................
(never meet)
Adrian.
6. It's ridiculous that trains are so expensive. If
fares......................................
(be) cheaper, I'm
sure more
people
................................................
(use) the train and leave their
cars
at
home.
7. Fortunately the explosion took place at night when the streets
were
empty. It
(be) a disaster if
it
.............................................
(happen) in the middle of the
day.
8. The talks between the two leaders keep breaking down. If they....................................(break down)
again, it is possible that there _________________ (be) a war between the two countries.
The zero conditional
Eg. If I stay out late, I always get a taxi home. present simple
present simple
To describe something that is generally true. The use of if here is very similar to when. When
I stay out late, I get a taxi home.
We can also use the past simple in the two clauses: If I stayed out
late, I always got a taxi home.
Practice 2
Put the verbs in brackets into the appropriate form.
1. He wouldn't be coming here
if
he................................... (not want) to.
2. If you were planning to leave your husband, I......................................... (advise) you against it.
3. He could be earning lots of money now if he really.................................(want) to, but I don't
think that's what he wants.
4. You can stay here tonight if you__________(not have) anywhere else to stay.
5. If I could have phoned you, I ________________(tell) you what was happening.
Compiled by Hussen y.
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FAQs

what are conditional sentences and their types

Conditional sentences express situations and their possible outcomes. They are categorized into three main types: first, second, and third conditionals.

  • First Conditional: Used for real and possible situations in the future, e.g., "If it rains, I will stay home."
  • Second Conditional: Used for hypothetical situations, e.g., "If I were rich, I would travel the world."
  • Third Conditional: Used for past situations that did not happen, e.g., "If I had studied harder, I would have passed the exam."

how to use first second and third conditional sentences

Using conditional sentences involves specific structures for each type. Each type has its own rules for verb tenses.

  • First Conditional: Formed with the present simple in the if-clause and future simple in the main clause, e.g., "If you study, you will pass."
  • Second Conditional: Uses past simple in the if-clause and would + base form in the main clause, e.g., "If I had a car, I would drive to work."
  • Third Conditional: Combines past perfect in the if-clause with would have + past participle in the main clause, e.g., "If she had known, she would have come."

examples of first second and third conditional sentences

Here are examples for each type of conditional sentence to illustrate their usage.

  • First Conditional: "If it is sunny tomorrow, we will go to the beach."
  • Second Conditional: "If I were you, I would take that job offer."
  • Third Conditional: "If they had left earlier, they would have caught the train."

what is the structure of first second and third conditionals

The structure of conditional sentences varies based on the type. Understanding these structures is crucial for proper usage.

  1. First Conditional: If + present simple, will + base verb (e.g., "If it rains, I will stay home.")
  2. Second Conditional: If + past simple, would + base verb (e.g., "If I had a million dollars, I would buy a house.")
  3. Third Conditional: If + past perfect, would have + past participle (e.g., "If I had known, I would have acted differently.")

how to form conditional sentences correctly

Forming conditional sentences correctly involves using the right verb tenses and structures for each type.

  • For the First Conditional, use the present simple in the if-clause and future simple in the main clause.
  • For the Second Conditional, use the past simple in the if-clause and would + base form in the main clause.
  • For the Third Conditional, use past perfect in the if-clause and would have + past participle in the main clause.

what are the uses of first second and third conditionals

The uses of conditional sentences vary based on their type, indicating different levels of possibility or reality.

  • First Conditional: Used for real and possible future situations.
  • Second Conditional: Used for hypothetical or unlikely present or future situations.
  • Third Conditional: Used for situations in the past that did not occur.

conditional sentences examples for practice

Practicing with examples can help solidify understanding of conditional sentences. Here are some examples for each type.

  • First Conditional: "If I finish my homework, I will watch a movie."
  • Second Conditional: "If I were the president, I would change the laws."
  • Third Conditional: "If they had invited me, I would have attended the party."

conditional sentences rules and tips

Understanding the rules and tips for conditional sentences can enhance your writing and speaking skills.

  • Always match the verb tense correctly according to the type of conditional.
  • Use commas appropriately when the if-clause comes first.
  • Practice with real-life scenarios to improve your grasp of conditionals.

how to identify first second and third conditional sentences

Identifying the type of conditional sentence involves looking at the verb forms used in the clauses.

  • First Conditional: Look for present simple in the if-clause and future simple in the main clause.
  • Second Conditional: Identify past simple in the if-clause and would + base verb in the main clause.
  • Third Conditional: Check for past perfect in the if-clause and would have + past participle in the main clause.