Nullkonditional: Allgemeine Wahrheiten (If vs. When)
if nutzt du für generelle Möglichkeiten, when für Dinge, die immer und regelmäßig passieren.
Grammar Rule in 30 Seconds
Use the Zero Conditional to talk about things that are always true, like scientific facts or personal habits.
- Use Present Simple in both clauses for facts: 'If you heat ice, it melts.'
- Use 'When' instead of 'If' when the situation is certain to happen.
- Never use 'will' in either part of a Zero Conditional sentence.
Overview
if und when ist? Das liegt daran, dass sie die Bausteine dafür sind, wie wir über die Regeln der Welt sprechen. Stell dir den Zero Conditional als die 'Physik' der Sprache vor.How This Grammar Works
Formation Pattern
will oder would.
If + you heat ice (Present Simple), it melts (Present Simple).
When To Use It
- Wissenschaftliche Fakten: Das sind die großen Wahrheiten. 'Wenn man Rot und Blau mischt, erhält man Lila.' Das ist Wissenschaft, da lässt sich nicht streiten!
- Persönliche Gewohnheiten: Nutze es, um deine eigene 'Programmierung' zu beschreiben. 'Wenn ich aufwache, checke ich mein Instagram.' Es ist eine wiederkehrende Routine, die für dich immer wahr ist.
- Anweisungen und Regeln: Denk an App-Einstellungen oder Spielregeln. 'Wenn du doppelt auf den Bildschirm tippst, pausiert das Video.' Oder 'Wenn die Ampel rot wird, bleibst du stehen.'
- Allgemeine Wahrheiten: Dinge, die in der Gesellschaft allgemein als wahr anerkannt sind. 'Wenn man einen Job hat, zahlt man Steuern.' (Leider ist das sehr real).
Common Mistakes
- 'Will' hinzufügen: Das ist der häufigste Fehler! Leute sagen oft: 'If it rains, the grass will get wet.' Das ist eigentlich ein First Conditional (eine Vorhersage). Für einen Zero Conditional (ein allgemeiner Fakt) sag einfach: 'If it rains, the grass gets wet.'
- Das '-s' vergessen: Denk an die dritte Person Singular! 'If he *eats* peanuts, he *gets* sick.' Lass diese kleinen Buchstaben nicht unter den Tisch fallen.
- 'If' und 'When' verwechseln: Obwohl sie oft austauschbar sind, impliziert 'when', dass etwas häufiger passiert oder sicherer ist als 'if'.
- Die Zeitform verkomplizieren: Du brauchst kein 'is going to' oder 'would'. Halt es einfach, halt es in der Gegenwart!
Contrast With Similar Patterns
- Zero Conditional: (If + Present, Present) = Allgemeine Wahrheiten/Gewohnheiten. 'If I drink coffee, I stay awake.' (Das passiert jedes Mal).
- First Conditional: (If + Present, Will + Verb) = Spezifische Zukunftsvorhersagen. 'If I drink this coffee now, I will stay awake tonight.' (Hier geht es um genau diese eine Tasse Kaffee).
Quick FAQ
F: Kann ich 'whenever' statt 'if' benutzen?
Absolut! 'Whenever' betont die Häufigkeit noch ein bisschen mehr. 'Wann immer ich eine Katze sehe, versuche ich sie zu streicheln.'
F: Ist es okay, den Imperativ im Ergebnis zu verwenden?
Ja! Das ist super verbreitet bei Anweisungen. 'Wenn du dich verlaufen hast, ruf mich an.'
F: Ändert die Reihenfolge der Sätze die Bedeutung?
Nein, die Bedeutung bleibt gleich, egal ob du den 'if'-Teil an den Anfang oder ans Ende stellst. Merk dir nur die Kommaregel!
F: Kann ich das für Dinge verwenden, die in der Vergangenheit passiert sind?
Nicht wirklich. Der Zero Conditional bezieht sich auf Dinge, die *allgemein* über die Zeit hinweg wahr sind. Für vergangene Gewohnheiten nutzen wir meist 'used to' oder das Past Simple.
Zero Conditional Structure
| Clause Type | Conjunction | Subject | Verb Tense | Example |
|---|---|---|---|---|
|
Condition
|
If / When
|
I / You / We / They
|
Present Simple
|
If you heat ice
|
|
Result
|
(comma)
|
It
|
Present Simple
|
it melts
|
|
Negative Condition
|
If
|
He / She / It
|
Does not + Verb
|
If she doesn't study
|
|
Negative Result
|
(comma)
|
She
|
Does not + Verb
|
she fails
|
|
Question
|
Do / Does
|
Subject
|
Verb... if clause
|
Do you cry if you are sad?
|
Common Contractions in Zero Conditional
| Full Form | Contraction | Usage Example |
|---|---|---|
|
do not
|
don't
|
If you don't go, I don't go.
|
|
does not
|
doesn't
|
If it doesn't rain, the grass dies.
|
|
I am
|
I'm
|
If I'm late, they start without me.
|
|
it is
|
it's
|
If it's cold, I wear a coat.
|
Meanings
A sentence structure used to express general truths, scientific facts, and situations where one action always causes another.
Scientific Facts
Describing laws of nature or universal truths that never change.
“If water reaches 100 degrees, it boils.”
“If you drop an object, it falls to the ground.”
Personal Habits & Routines
Describing things you consistently do in response to a specific trigger.
“If I wake up late, I skip breakfast.”
“When I feel stressed, I go for a run.”
Instructions & Rules
Giving commands or explaining how a system works.
“If the light turns red, stop the car.”
“When the bell rings, the lesson ends.”
Reference Table
| Bedingungs-Typ | Struktur | Zweck | Beispiel |
|---|---|---|---|
|
Zero Conditional
|
If/When + Simple Present, Simple Present
|
Universelle Fakten, allgemeine Wahrheiten
|
If you freeze water, it turns to ice.
|
|
Zero Conditional (reversed)
|
Simple Present if/when Simple Present
|
Universelle Fakten, allgemeine Wahrheiten
|
Water turns to ice if you freeze it.
|
|
When (certainty)
|
When + Simple Present, Simple Present
|
Erwartetes, regelmäßiges Vorkommen
|
When I wake up early, I feel energized.
|
|
If (possibility/choice)
|
If + Simple Present, Simple Present
|
Bedingung ist möglich, aber Ergebnis sicher
|
If you eat too much, you feel sick.
|
|
Common Mistake
|
If + Simple Present, WILL + Verb
|
Zukunfts-Vorhersage (First Conditional)
|
If you heat ice, it *will* melt. (Incorrect)
|
|
Correct Form
|
If + Simple Present, Simple Present
|
Immer wahres Ergebnis
|
If you heat ice, it *melts*. (Correct)
|
Formalitätsspektrum
If an employee arrives after 9:00 AM, the tardiness is recorded. (Workplace policy)
If you are late for work, you get in trouble. (Workplace policy)
If you're late, the boss gets mad. (Workplace policy)
If you show up late, you're toast. (Workplace policy)
Zero Conditional: Allgemeine Wahrheiten
Struktur
- If/When + Simple Present Bedingungssatz
- Simple Present Ergebnissatz
Funktion
- Scientific Facts z.B. Wasser gefriert
- General Observations z.B. Menschen werden müde
- Irrefutable Truths z.B. Sonne geht auf
If vs When
- If Allgemeine Möglichkeit, Wahl
- When Erwartete Regelmäßigkeit, Sicherheit
Vergleich: "If" vs. "When" im Zero Conditional
Zero Conditional Entscheidungsfluss
Geht es um einen universellen Fakt oder ist die Aussage immer wahr?
Ist die Bedingung erwartet oder ein regelmäßiges Vorkommen?
Sind beide Satzteile im Simple Present?
Zero Conditional Szenarien
Wissenschaftliche Fakten
- • If you heat ice, it melts.
- • When water boils, it produces steam.
Allgemeine Beobachtungen
- • If people don't eat, they get hungry.
- • When I'm tired, I make mistakes.
Persönliche Wahrheiten/Gewohnheiten
- • If my phone battery dies, I feel disconnected.
- • When my alarm rings, I get up.
Prozedurale Regeln
- • If you press 'undo', the last action reverses.
- • When you save, changes apply.
Beispiele nach Niveau
If I am tired, I sleep.
If I am tired, I sleep.
If you heat water, it is hot.
If you heat water, it is hot.
When it rains, I stay home.
When it rains, I stay home.
If I see her, I say hello.
If I see her, I say hello.
If you don't eat, you get hungry.
If you don't eat, you get hungry.
When the sun goes down, it gets dark.
When the sun goes down, it gets dark.
If you press this button, the light turns on.
If you press this button, the light turns on.
Does it work if you plug it in?
Does it work if you plug it in?
If you mix oil and water, they don't stay together.
If you mix oil and water, they don't stay together.
When I drink coffee late at night, I can't sleep.
When I drink coffee late at night, I can't sleep.
If a customer complains, we offer a refund.
If a customer complains, we offer a refund.
Unless it rains, I walk to work every day.
Unless it rains, I walk to work every day.
If the temperature drops below zero, water freezes.
If the temperature drops below zero, water freezes.
When people exercise regularly, they feel better.
When people exercise regularly, they feel better.
If the economy slows down, unemployment usually rises.
If the economy slows down, unemployment usually rises.
If you don't have a password, you can't access the file.
If you don't have a password, you can't access the file.
If one ignores the symptoms, the condition worsens.
If one ignores the symptoms, the condition worsens.
Whenever the government raises taxes, there is public outcry.
Whenever the government raises taxes, there is public outcry.
If a contract contains an error, it is legally void.
If a contract contains an error, it is legally void.
When a species loses its habitat, it faces extinction.
When a species loses its habitat, it faces extinction.
If power corrupts, absolute power corrupts absolutely.
If power corrupts, absolute power corrupts absolutely.
When the market reaches saturation, innovation becomes the only path to growth.
When the market reaches saturation, innovation becomes the only path to growth.
If a theory fails to account for new data, it is eventually discarded.
If a theory fails to account for new data, it is eventually discarded.
Whenever the artist revisits this theme, the tone remains somber.
Whenever the artist revisits this theme, the tone remains somber.
Leicht verwechselbar
Learners use 'will' in Zero Conditional or vice versa. They think all 'if' sentences need 'will'.
Using 'if' for things that are 100% certain to happen (like the sun rising).
Learners forget that 'unless' means 'if... not'.
Häufige Fehler
If it rain, the grass get wet.
If it rains, the grass gets wet.
If I am hungry I eat.
If I am hungry, I eat.
If you heat ice, it will melt.
If you heat ice, it melts.
When I wake up, I am drinking coffee.
When I wake up, I drink coffee.
If you don't study, you will fail.
If you don't study, you fail.
Does the water boil if you heated it?
Does the water boil if you heat it?
If it is raining, I take an umbrella.
If it rains, I take an umbrella.
If you will mix red and blue, you get purple.
If you mix red and blue, you get purple.
Unless you don't eat, you stay healthy.
Unless you eat, you stay healthy.
When I am seeing him, I feel happy.
When I see him, I feel happy.
If the law will be broken, there is a penalty.
If the law is broken, there is a penalty.
Provided that it will rain, the crops grow.
Provided that it rains, the crops grow.
If one would be late, one is punished.
If one is late, one is punished.
Satzmuster
If you ___, you ___.
When it ___, I ___.
___ if you ___.
Whenever ___, ___.
Real World Usage
If the pressure increases, the volume decreases.
If the sauce gets too thick, add a splash of water.
If the red light blinks, replace the battery.
If you work on a holiday, you receive double pay.
If I'm late, just start the movie without me.
If you use the weights, put them back after.
If you don't finish your vegetables, you don't get dessert.
Denk dran: "Immer wahr"!
Achtung: Kein "will"!
will im Hauptsatz des Zero Conditional. Das klingt nach einer Zukunfts-Vorhersage, nicht nach einer allgemeinen Wahrheit. Bleib beim Simple Present, zum Beispiel: If you heat ice, it melts.
"If" vs. "When": Der kleine Unterschied
If bedeutet eine allgemeine Möglichkeit oder Wahl (wenn es passiert, dann...). When meint Regelmäßigkeit oder Sicherheit (jedes Mal, wenn es passiert, dann...). Wähl weise für Genauigkeit! Wie bei: If you want to pass, you study hard.versus
When the bell rings, class ends.
Universell akzeptiert
If you are tired, you sleep.
Komma-Regel
If/When-Satz, Hauptsatz. Kein Komma bei: Hauptsatz if/when-Satz. Ein kleines Detail, das deinen Text aber poliert aussehen lässt! Wie in: "If it's cold, I wear a jacket."Smart Tips
Check that both verbs are in the Present Simple. If you see a 'will', delete it!
Use the 'If + Present Simple, Imperative' pattern for clarity.
Swap 'if' for 'when' to sound more natural.
Use 'whenever' instead of 'if' to emphasize that the rule applies every single time.
Aussprache
The Comma Pause
When the 'if' clause comes first, there is a slight rising intonation at the end of the clause, followed by a brief pause.
Contraction Stress
In 'don't' or 'doesn't', the 't' is often unreleased (stopped), but the vowel is stressed to show negation.
Conditional Rise-Fall
If you heat ice ↗, it melts ↘.
The rise indicates the condition is being set; the fall indicates the certain result.
Einprägen
Eselsbrücke
Zero is for Zero Doubt. If it's a fact, keep the tense intact (Present + Present).
Visuelle Assoziation
Imagine a light switch. If you flip the switch (Condition), the light turns on (Result). It happens every single time, without fail.
Rhyme
If the truth is what you say, keep the 'will' far away.
Story
A scientist is in a lab. He says: 'If I mix these, it explodes.' He doesn't say 'it will explode' because he has done it 1,000 times and it's a law of nature.
Word Web
Herausforderung
Look around your room. Write 3 Zero Conditional sentences about how things work (e.g., 'If I press the power button, the TV turns on').
Kulturelle Hinweise
British speakers often use 'if' and 'when' interchangeably for habits, but may use 'should' in formal zero-like instructions (e.g., 'Should you require assistance, please ask').
Americans frequently use the Zero Conditional for 'tough love' advice or common sense rules.
In academic papers, the Zero Conditional is the standard for describing methodology and universal results, avoiding 'will' to maintain a timeless, objective tone.
The term 'Zero Conditional' was coined by grammarians in the 20th century to categorize conditional sentences by their degree of probability.
Gesprächseinstiege
What happens if you don't drink water for a whole day?
What do you usually do when you feel stressed?
Tell me about a rule in your country. What happens if someone breaks it?
If a person wants to be successful in your field, what do they need to do every day?
Tagebuch-Impulse
Häufige Fehler
Test Yourself
If you don't study, you ___ your exams.
Find and fix the mistake:
When it rains, the roads will get slippery.
Choose the correct sentence:
Translate into English: 'Si mezclas rojo y azul, obtienes morado.'
Answer starts with: ["I...
Score: /4
Ubungsaufgaben
8 exercisesIf you ___ (mix) red and white, you ___ (get) pink.
Choose the best option:
Find and fix the mistake:
Correct the sentence:
Rewrite:
We use the Zero Conditional to talk about a specific event in the future.
A: Does this machine work? B: Yes, if you ___ the green button, it ___.
Identify the outlier:
1. If you don't water plants... / 2. If you add sugar... / 3. If you exercise...
Score: /8
Practice Bank
10 exercisesWhen a baby is hungry, it often ___ (cry).
If you touch a hot stove, you will burn your hand.
Which of these is a correct Zero Conditional statement?
Translate into English: 'Si duermas poco, te sientes cansado.'
Arrange these words into a sentence:
Match the conditions with their usual results:
___ you press the 'enter' key, the command executes.
If an object is heavier, it falls faster.
Which sentence is a correct Zero Conditional statement?
Translate into English: 'Wenn man lange vor dem Bildschirm sitzt, tun die Augen weh.'
Score: /10
FAQ (8)
Generally, no. If you use `will`, it becomes a First Conditional, which is for specific future events. Zero Conditional is for things that are *always* true.
Use `if` for things that might happen (If it rains...). Use `when` for things you are sure will happen (When the sun sets...).
Only if the `if/when` clause comes first. If it comes second (e.g., 'Ice melts if you heat it'), no comma is needed.
Yes! This is very common for instructions. For example: 'If you are lost, look at the map.'
Yes. `Unless` means 'if not'. Example: 'Plants die unless you water them' is the same as 'Plants die if you don't water them.'
It is neutral. It is used in everything from casual texting to formal scientific journals.
No. If you use the past tense, it usually becomes a Second Conditional (imaginary) or a past habit. Zero Conditional strictly uses the Present Simple.
It's called 'Zero' because there is zero doubt about the result. It is a 100% certainty.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Si + presente, presente
English is stricter about using Present Simple for general truths.
Si + présent, présent
French sometimes uses the future where English requires the present for generalities.
Wenn + Präsens, Präsens
German uses one word ('wenn') for both 'if' and 'when'.
~to (~と)
Japanese has multiple conditional forms (~tara, ~ba, ~to) while English uses one structure with different conjunctions.
Idha (إذا) + Present
Arabic verb aspects (perfective/imperfective) function differently than English tenses.
Ruguo (如果)... jiu (就)...
Lack of tense markers in Chinese makes the 'Present Simple' rule hard for learners to visualize.
Learning Path
Prerequisites
Verwandte Videos
Related Grammar Rules
Erster Bedingungssatz: Unless = If Not
### Overview In der englischen Grammatik ist das Wort `unless` ein echtes Multitalent, das dir dabei hilft, deine Sätze...
Zero Conditional: Gewohnheiten und Routinen
### Overview Das `Zero Conditional` ist eines der nützlichsten Werkzeuge in deinem englischen Grammatik-Baukasten, beso...
Can: Fähigkeit ausdrücken (Can)
### Overview Das Modalverb `can` ist ein fundamentaler Baustein des Englischen und drückt primär **Fähigkeit** oder **M...
Gemischte Konditionalsätze: Vergangene Aktion, gegenwärtiges Ergebnis (Type 2)
### Overview Stell dir vor, du sitzt in einem Meeting in deinem Büro in Frankfurt oder München. Ein Kollege fragt, waru...
Suppose & Supposing: Das 'Was wäre wenn'-Spiel
### Overview In der englischen Grammatik sind `suppose` und `supposing` weit mehr als nur einfache Vokabeln; sie fungie...
