Skip to content
MicroEnglish
Search Help Contact us Sign in

Micro-listening

Level
B1
Accent
3 accents
Time
12 min

English Conditionals: Rules and Real Examples

How do English conditionals work?

English conditionals connect a condition with its consequence. Zero conditional uses present simple for regular facts; first conditional uses present simple after if and will, can or might for realistic future results; second conditional uses past tense plus would for hypothetical situations. Example: If the alarm rings, the lights switch on.

Key points

  • Zero conditional describes facts, rules and repeated routines.
  • First conditional describes realistic future possibilities and results.
  • Second conditional describes imagined or unlikely present situations.
  • Use 'were' for careful hypothetical advice and formal writing.

This lesson has 5 stages. You can stop at any time and continue later.

Start the lesson
A man and woman at a table with three dioramas illustrating conditionals with a watered plant, rain and an umbrella, and travel gear.

At a glance

FormUse it forExample
Zero conditionalRepeatable facts, rules or regular routinesIf metal gets hot, it expands.
First conditionalRealistic future possibilities or plansIf she calls, I will answer.
Second conditionalHypothetical or unlikely present situationsIf I had wings, I would fly.

Stage 1 of 5

Understand

What it means, when to use it, and mistakes to avoid.

The full explanation

Conditionals show how one event depends upon another. A zero conditional expresses repeatable facts or rules. A first conditional looks ahead toward realistic future plans and their consequences. A second conditional moves away from present reality to discuss hypothetical situations or offer advice.

If you heat water to one hundred degrees, it boils.

Why it works: This zero conditional describes an unchanging physical fact using the present simple in both clauses.

3 more examples
  • If the client signs the contract today, we will start manufacturing on Monday.

    This first conditional pairs a present simple condition with a realistic future outcome.

  • If I lived closer to the office, I would walk to work every morning.

    This second conditional imagines a daily routine that differs from the speaker's current reality.

  • If I were in your position, I would discuss the budget with our director.

    This second conditional uses 'were' to deliver professional advice from an imagined perspective.

Read the full guide

8 short steps, one check each

Distinguish facts from possibilities and hypothetical scenarios

Before you select any verb forms, determine whether your sentence describes a regular rule, a realistic future outcome, or an imagined situation. English matches specific grammatical structures to these three levels of reality. Thinking about your communicative purpose first prevents you from blindly plugging in modal verbs whenever you see the conjunction if. When an outcome occurs reliably every time, you need a different structure than when you speculate about an unlikely dream.

  • If you heat ice cubes, they melt into liquid water.

    Why it works: This sentence states a universal scientific fact that never changes.

  • If the train arrives on time, we will catch our flight.

    Why it works: This sentence describes an achievable future situation and its probable result.

  • If I lived in Tokyo, I would speak Japanese every day.

    Why it works: The speaker currently lives elsewhere, making this an imagined scenario.

Your turn

Which situation describes an imagined scenario rather than a realistic future plan?

Show the answer

Answer: If I had a pilot license, I would fly across the country.

The speaker does not hold a pilot license right now, so the sentence explores an unreal condition using the past form 'had' and 'would'.

Use the zero conditional for repeatable facts and rules

When an outcome follows a condition every single time, use the zero conditional. This pattern is common in scientific descriptions, workplace regulations, operating manuals, and personal habits. Form the zero conditional by using the present simple in both the condition clause and the result clause. You can often replace the word if with when in these sentences without changing the fundamental meaning, because the result is certain whenever the condition occurs.

  • If you store milk at room temperature, it spoils rapidly.

    Why it works: Both clauses use the present simple because this outcome occurs reliably.

  • When the bell rings, students leave the examination hall.

    Why it works: 'When' replaces 'if' here to emphasize that this routine happens consistently.

  • If employees feel ill, they stay home to recover.

    Why it works: This states standard company policy rather than a one-time prediction.

You can practise this again in Proper Adjectives: Rules and Examples and Conditionals.

Your turn

Which sentence correctly follows the zero conditional pattern for a routine?

Show the answer

Answer: If the printer runs out of paper, the yellow warning light turns on.

A general machine routine requires present simple verbs in both the condition and the result clause without 'will'.

Use the first conditional for realistic future outcomes

When you want to talk about a specific event that may actually happen in the future, choose the first conditional. The standard structure pairs the present simple after the word if with a modal verb such as will, can, or might in the main result clause. The present tense verb in the if-clause establishes the condition, while will announces the anticipated consequence once that condition is satisfied.

  • If the supplier ships the parts today, we will assemble the units tomorrow.

    Why it works: 'Ships' sets the realistic condition, and 'will assemble' states the planned outcome.

  • If you finish your assignment before five, you can leave the office early.

    Why it works: Using 'can' in the result clause expresses permission rather than simple prediction.

  • If traffic is heavy on the highway, we might arrive twenty minutes late.

    Why it works: 'Might' indicates that the delayed arrival is possible but not guaranteed.

Your turn

Select the sentence that correctly expresses a realistic future possibility.

Show the answer

Answer: If the weather stays pleasant tomorrow, we will hold the workshop outside.

The condition clause correctly uses the present simple 'stays' for a future event, paired with 'will hold' in the result clause.

Keep will out of the conditional clause

A frequent error among adult learners is placing will directly after the conjunction if. Even though your mind is thinking about future time, standard English grammar reserves will for the result clause. The if-clause merely defines the circumstance under which the result happens, so it requires a present tense verb. Resist the temptation to double up on future markers in both halves of the sentence.

  • If the manager approves our budget, we will purchase new computers.

    Why it works: Notice that 'approves' is in the present simple, not 'will approve'.

  • We will order dinner if Marcus calls from the station.

    Why it works: The condition clause appears second and still takes the present simple 'calls'.

  • If anyone asks for help, our staff will assist them immediately.

    Why it works: Even with indefinite pronouns like 'anyone', keep the verb in present simple.

Your turn

Which sentence avoids the error of using 'will' in the condition clause?

Show the answer

Answer: If the bus is crowded, we will wait for the next departure.

Standard English grammar uses the present simple 'is' in the if-clause, saving 'will wait' for the main result clause.

Use the second conditional for hypothetical situations

When you want to discuss dreams, unlikely occurrences, or situations that are completely contrary to current reality, turn to the second conditional. The standard formula uses a past tense verb form in the condition clause and would followed by a base verb in the main result clause. It is essential to recognize that this past tense form does not indicate past time; instead, it signals psychological distance from current reality.

  • If I owned an electric vehicle, I would charge it overnight.

    Why it works: The speaker does not own an electric vehicle now, so 'owned' marks psychological distance.

  • If our team had two additional developers, we would complete the software sooner.

    Why it works: The team currently lacks extra developers, making this an imagined scenario.

  • They would travel across South America if they had four months of vacation.

    Why it works: 'Would travel' is the hypothetical result of having four months off.

Your turn

Why does the second conditional use past tense verbs like 'owned' or 'had'?

Show the answer

Answer: To show psychological distance from reality rather than historical time.

In hypothetical conditionals, past verb forms mark unreality or distance from real facts, not past chronology.

Use were for advice and formal hypothetical statements

In careful English and formal writing, use were instead of was for all subjects in the second conditional if-clause, including I, he, she, and it. This construction is known historically as the subjunctive mood. The fixed phrase If I were you is the standard polite structure for offering advice. While was appears frequently in casual conversations, were remains the expected standard in professional correspondence and proficiency exams.

  • If I were you, I would accept the job offer before Friday.

    Why it works: 'If I were you' is the standard conventional phrase for giving advice.

  • If she were here today, she would clarify the project requirements.

    Why it works: Using 'were' with 'she' maintains a formal and precise hypothetical tone.

  • If the director were available, we would ask for his feedback directly.

    Why it works: Singular subjects like 'the director' take 'were' in careful hypothetical prose.

Your turn

Which option represents the most appropriate phrasing for professional advice?

Show the answer

Answer: If I were you, I would renegotiate the contract terms.

'If I were you, I would...' is the standard professional second conditional frame for offering advice.

Arrange clauses and apply correct punctuation

You can place either the condition clause or the result clause at the start of your sentence without altering the core meaning. However, the clause order dictates your punctuation. If you begin your sentence with the if-clause, you must place a comma immediately after it before introducing the main clause. If you place the main result clause first, no comma is required before if.

  • If the package arrives before noon, sign the delivery receipt.

    Why it works: The sentence starts with the condition, so a comma separates the two clauses.

  • Sign the delivery receipt if the package arrives before noon.

    Why it works: When the result clause comes first, no comma is used before 'if'.

  • We will cancel our reservation if our flight is delayed by two hours.

    Why it works: The result clause leads the sentence, making a middle comma unnecessary.

Your turn

Which sentence displays the correct punctuation rule for conditional clauses?

Show the answer

Answer: If you finish the summary report by noon, please send it to the client.

When the if-clause comes first, it requires a comma right after the clause ends.

Recognize contractions and unstressed auxiliary verbs in speech

In natural spoken English, auxiliary verbs in conditional sentences are almost always contracted or unstressed. Native speakers rarely pronounce will or would in full unless they want to emphasize contrast. Will contracts to a light 'll attached to pronouns, while would reduces to a subtle 'd. Additionally, the word if is often spoken rapidly with a reduced vowel, blending into the following pronoun or noun.

  • If you ask him politely, he'll lend you his camera.

    Why it works: In fast speech, 'he will' reduces to 'he'll', sounding like a single syllable.

  • If we had twenty minutes, we'd explain the entire diagram.

    Why it works: The contraction 'we'd' represents 'we would' and can be easily missed if you listen for full words.

  • If it rains, they'll move the instruments inside.

    Why it works: 'They will' contracts to 'they'll', where the double 'l' blends into the following consonant.

Your turn

What full phrase does the contraction 'they'd' represent in the sentence 'If they knew the answer, they'd tell us'?

Show the answer

Answer: they would

In a second conditional sentence with a base verb like 'tell', 'they'd' represents 'they would'.

Common mistakes

What learners often say, what to say instead, and why.

  • Not this: If the parcel will arrive today, we will sign for it.

    Say: If the parcel arrives today, we will sign for it.

    Use present simple after 'if'; put 'will' in the result clause.

  • Not this: If the office is larger, we would add another desk.

    Say: If the office were larger, we would add another desk.

    A hypothetical condition needs a past form; careful English uses 'were'.

  • Not this: If the sensor detects smoke the alarm sounds.

    Say: If the sensor detects smoke, the alarm sounds.

    A comma follows an if-clause when it comes before the result clause.

Questions about "English Conditionals: Rules and Real Examples"

Why can't I say 'if it will rain' when talking about tomorrow?

In standard English first conditional sentences, the if-clause sets the condition using the present simple tense, even though it points to future time. The modal verb will belongs in the main result clause to express the future outcome. Saying 'if it will rain' sounds awkward and unnatural to native speakers.

If it rains tomorrow, we will carry umbrellas.

We will cancel our hike if the weather worsens.

Can I say 'if I was you' instead of 'if I were you'?

In informal everyday speech, many native speakers say 'if I was'. However, 'if I were you' is the standard traditional form across all persons (I, he, she, it) in hypothetical situations and advice. In job applications, professional writing, and English examinations, 'were' remains the safer and preferred choice.

If I were you, I would send a follow-up email.

If she were available today, she would explain the problem.

How does 'unless' work compared to 'if not'?

'Unless' means 'except if' or 'if not'. It introduces the only condition that will prevent the result from happening. Because 'unless' already contains a negative idea, the clause that follows it uses an affirmative verb rather than a negative one.

Unless you hurry, you will miss the morning ferry.

We will begin our meeting at ten unless our director requests a delay.

How do I choose between zero conditional and first conditional?

Ask yourself if the statement describes a general truth that happens every time, or a specific prediction for an upcoming event. Use the zero conditional for general rules, scientific facts, or repeatable habits. Use the first conditional when you are talking about a specific future occasion.

If you freeze water, it turns into ice.

If you leave that water outside tonight, it will freeze.

Before you go

Remember this

Identify your level of reality before speaking or writing. Use present simple throughout for routines and universal truths. Use present simple plus will for realistic future plans. Use past tense plus would for imagined situations. Remember to insert a comma whenever the if-clause leads the sentence.

Stage 2 of 5

Listen

Hear it in real sentences, from short to long, and write what you hear.

Choose the voice you practise with

0 of 4 done

Listening 1 of 4 3 s A supervisor explains an office printer alert.

Listen, then type what you hear. Replay as often as you need.

Capital letters and punctuation do not affect your score.

Read the transcript

If orange ink blinks, press cancel once.

This zero-conditional imperative links a machine signal directly to a clear command.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
Listening 2 of 4 3 s A colleague suggests an early preparation plan before a client meeting.

Listen, then type what you hear. Replay as often as you need.

Capital letters and punctuation do not affect your score.

Read the transcript

If Oliver arrives early, we can review our slides.

The first conditional uses the present simple 'arrives' after 'if' and 'can review' for the possible outcome.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Try a longer clip. Listen once, then replay the part you missed.

Listening 3 of 4 10 s An outdoor seminar leader explains bad weather arrangements to the group.

Listen, then type what you hear. Replay as often as you need.

Capital letters and punctuation do not affect your score.

Read the transcript

If afternoon rain begins, our team will move each chair inside immediately. Everyone can enjoy hot soup while Alex explains our new schedule.

The speaker combines a first-conditional prediction ('will move') with an ability modal ('can enjoy') for indoor logistics.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

This clip is longer. Follow the instruction above the answer field.

Listening 4 of 4 26 s A community garden director briefs morning volunteers on their schedule and weather alternatives.

Listen, then type the missing words. The rest of the text is already there.

If our morning stays clear, we will plant eleven apple along our perimeter fence. Should anyone arrive please carry spare garden tools into our If unexpected rain stops our outdoor work, our crew assemble wooden seed boxes indoors instead. indoor tasks ensure every volunteer stays while helping our neighborhood space thrive.

Read the transcript

If our morning weather stays clear, we will plant eleven apple saplings along our perimeter fence. Should anyone arrive early, please carry spare garden tools into our greenhouse. If unexpected rain stops our outdoor work, our crew will assemble wooden seed boxes indoors instead. Such indoor tasks ensure every volunteer stays warm while helping our neighborhood space thrive.

This extended briefing contrasts realistic outdoor plans with an indoor contingency, demonstrating first conditional predictions and instructions.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Listen for

At natural speed these words change shape. Tap one to hear it again.

  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.
  • The last sound of the first word runs straight into the next word.

Stage 3 of 5

Speak

Say it with the speaker, then use it in your own answer.

Shadow

Say it along with the speaker

If orange ink blinks, press cancel once.

Play the line slowly, then speak at the same time as the speaker. Copy the rhythm, not just the words.

Stage 4 of 5

Write

Write about your own day or week using it, then write a message.

Write

Put it in your own words

  • I used “english Conditionals: Rules and Real Examples”.
  • It is about my life, not the lesson’s example.
  • I read it once aloud to check it sounds right.

Write your own response

Choose a situation and write 30–50 words in your own wording. This is separate from typing the exact words in a recording.

Write a short message to your project team explaining what will happen if an afternoon client demonstration is delayed. Use first conditional patterns in 30-50 words.

Use these checks to revise your message. Grammar and meaning are not automatically graded. Each task keeps its own draft in this browser tab.

Stage 5 of 5 · Part of membership

Check

New clips without hints.

Listening tests are included with membership. Try the free dictation first, then decide whether to continue.

Go to the free dictation

Listening 1 of 2 9 s Part of membership

Listening 2 of 2 24 s Part of membership

Teaching a class?

Post this lesson to Google Classroom as an assignment or class material.

Follow MicroEnglish

New lessons, short videos and quick quizzes every day. Pick the app you already use.

Questions & comments

Ask about this lesson, share an example, or help another learner.

Open the discussion
Ask meAI tutor

AI tutor

Opening your tutor…