B1 · Mittelstufe Kapitel 14

Talking About Facts and Constant Truths

5 Gesamtregeln
60 Beispiele
6 Min.
Regeln in diesem Kapitel Schnelle Übung

Chapter in 30 Seconds

Master the art of stating facts and universal truths with confidence.

  • Use the zero conditional to describe natural laws.
  • Explain daily routines and personal habits clearly.
  • Distinguish between certainty and future possibilities.
Speak with the certainty of truth.

Was du lernen wirst

Ready to talk about the world in a super clear way? This chapter will show you how to confidently share general truths and everyday habits. You'll master when to use 'if' versus 'when' for these constant facts, making your English even more precise.

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to: Formulate sentences describing scientific facts using the zero conditional.

Kapitel-Leitfaden

Overview

Ready to elevate your B1 English grammar and speak with more precision about the world around you? This chapter is your go-to guide for English talking about facts and constant truths. As you navigate everyday situations and travel, you'll often need to explain how things work, describe routines, or state universal laws.
Mastering this skill isn't just about sounding correct; it's about communicating clearly and confidently.
We'll dive into the versatile Zero Conditional, a powerful structure that helps you articulate things that are always, undeniably true. You'll learn how to express everything from scientific facts to your daily habits and even simple instructions. A key focus will be understanding the subtle but important difference between using 'if' and 'when' within these constant truths, allowing you to choose the most precise word.
We'll also briefly touch on how the Zero Conditional differs from the First Conditional, ensuring you can distinguish between absolute certainties and likely future possibilities. By the end, you'll be able to discuss general truths and everyday patterns like a pro!

How This Grammar Works

At its heart, the grammar for talking about facts and constant truths revolves around the Zero Conditional. This structure is used when a certain condition always leads to the same, guaranteed result. Think of it like a universal law or an unbroken chain of cause and effect.
The most important rule to remember is that you use the Present Simple tense in *both* parts of the sentence.
Let's look at how it applies to different situations:
First, for General Truths, it's about scientific facts or universal observations. For example,
If you heat ice, it melts.
Or,
Water boils if you heat it to 100 degrees Celsius.
Here, the condition (heating ice/water) *always* results in the same outcome (melting/boiling).
Next, for Habits and Routines, the Zero Conditional describes things that are always true for a person or group. You might say,
When I wake up early, I always feel tired.
Or,
If my dog hears the doorbell, she barks loudly.
Notice how 'when' can often be used interchangeably with 'if' in these scenarios, especially when describing regular occurrences or routines.
It's also excellent for giving Facts and Instructions. If you're explaining how something works or giving directions, this is your go-to.
If you press this button, the machine starts.
Or,
The printer runs out of ink quickly if you print many photos.
The action always leads to the stated result.
Finally, let's clarify If vs When and the Zero vs First Conditional. In the Zero Conditional, 'if' and 'when' are often interchangeable for general truths, as both suggest a guaranteed outcome.
If it rains, the grass gets wet
means the same as
When it rains, the grass gets wet.
However, the key distinction is between the Zero Conditional and the First Conditional.
The Zero Conditional is for things that *always* happen (e.g.,
If you mix blue and yellow, you get green
). The First Conditional is for specific future possibilities that are likely to happen (e.g.,
If it rains tomorrow, we will stay inside
). Knowing this difference is crucial for precise communication in B1 English grammar.

Common Mistakes

It's easy to make a few common errors when you're first learning to talk about facts and constant truths. Here are some to watch out for:
  1. 1Mixing tenses in the Zero Conditional
* ✗ If you will heat water, it boils.
* ✓ If you heat water, it boils.
* *Explanation:* Both clauses in the Zero Conditional must use the Present Simple tense because we're talking about something that is *always* true, not a future possibility.
  1. 1Using Zero Conditional for a specific future possibility
* ✗ If it rains tomorrow, we stay inside.
* ✓ If it rains tomorrow, we will stay inside.
* *Explanation:* The Zero Conditional is for universal truths and habits. For a specific event that is likely to happen in the future, you need the First Conditional (Present Simple + will + base verb).
  1. 1Overusing 'if' when 'when' implies stronger certainty or routine
* ✗ If the alarm clock rings, I get up. (Grammatically fine, but 'when' is often more natural for routines)
* ✓ When the alarm clock rings, I get up.
* *Explanation:* While 'if' is correct, 'when' often feels more natural and emphasizes the regularity or expected occurrence of the condition for habits and routines.

Real Conversations

Here are a few quick dialogues showing how these grammar patterns appear in everyday B1 English conversations:

A

A

How do you manage to stay so calm under pressure?
B

B

Oh, that's easy! If I feel stressed, I always take a few deep breaths. It really helps.
A

A

I'm trying to grow tomatoes, but they keep dying. Any tips?
B

B

Hmm, well, if the soil is too dry, they don't grow well. And when the sun gets too hot, you need to water them twice a day.
A

A

This coffee machine is confusing! How do I make a latte?
B

B

No problem! First, if you fill the water tank, the machine lights up. Then, when the milk is hot, you add the espresso.

Quick FAQ

Q

What's the main difference between if and when in the Zero Conditional?

In the Zero Conditional, if and when are often interchangeable for general truths and facts. However, when often emphasizes that the condition is expected or happens regularly (like a routine), while if can introduce a condition that *might* occur but still leads to a guaranteed result. Both express certainty.

Q

Can I use the Zero Conditional to give instructions?

Absolutely! It's perfect for clear instructions. For example,

If you want to print, you click this icon,
or
The printer starts if you press the green button.
It makes the result of an action very clear and predictable.

Q

How does knowing the Zero Conditional help my B1 English?

It significantly improves your ability to explain how things work, describe universal laws, talk about your habits, and give precise instructions. These are all common and essential communication tasks in B1 English for discussing facts and constant truths.

Q

Is the Zero Conditional only for scientific facts?

Not at all! While it's great for scientific facts (

If you freeze water, it turns to ice
), it's also widely used for everyday habits ("If I don't eat breakfast, I get hungry fast), general observations (When people are tired, they often make mistakes"), and practical instructions.

Cultural Context

Native English speakers use the Zero Conditional constantly in daily conversation. It's a fundamental way to express how the world works, share personal routines, and give straightforward explanations. Because it deals with objective facts and established patterns, its use is generally very direct and doesn't vary much between formal and informal settings.
Whether you're reading a scientific article or chatting with a friend about their morning routine, the structure remains consistent. This predictability makes it a solid and reliable part of your B1 English grammar toolkit.

Wichtige Beispiele (8)

1

If you heat water to 100°C, it boils.

Wenn du Wasser auf 100°C erhitzt, kocht es.

Nullkonditional: Allgemeine Wahrheiten
2

When I'm hungry, I eat something.

Wenn ich Hunger habe, esse ich etwas.

Nullkonditional: Allgemeine Wahrheiten
3

If I drink coffee too late, I can't sleep.

Wenn ich zu spät Kaffee trinke, kann ich nicht schlafen.

Zero Conditional: Gewohnheiten und Routinen
4

When she finishes work, she usually watches a sitcom.

Wenn sie mit der Arbeit fertig ist, schaut sie normalerweise eine Sitcom.

Zero Conditional: Gewohnheiten und Routinen
5

If you press `Ctrl + S`, the document saves.

Wenn du `Strg + S` drückst, speichert das Dokument.

Zero Conditional: Fakten und Anweisungen
6

When you don't get enough sleep, you feel tired.

Wenn du nicht genug Schlaf bekommst, fühlst du dich müde.

Zero Conditional: Fakten und Anweisungen
7

If you heat water to 100 degrees Celsius, it boils.

Wenn du Wasser auf 100 Grad Celsius erhitzt, kocht es.

Nullkonditional: Allgemeine Wahrheiten (If vs. When)
8

When the sun goes down, it gets dark.

Wenn die Sonne untergeht, wird es dunkel.

Nullkonditional: Allgemeine Wahrheiten (If vs. When)

Tipps & Tricks (4)

💡

Denk an 'Immer wahr'

Wenn das Ergebnis *immer* eintritt, sobald eine Bedingung erfüllt ist, dann ist der Zero Conditional dein Freund. Er ist super für universelle Fakten und regelmäßige Gewohnheiten.
If the outcome always happens, use Zero Conditional.
frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten
💡

Denk: 'Immer wahr' für DICH

Wenn du Zero Conditional Sätze für Gewohnheiten bildest, frag dich: 'Ist das immer wahr für mich oder für die Person, über die ich spreche?' Wenn ja, benutz Simple Present in beiden Satzteilen!
If I eat nuts, I get a rash.
frontend.learn_grammar.from_rule: Zero Conditional: Gewohnheiten und Routinen
💡

Denk dran: 'Immer wahr'

Der Zero Conditional ist für Aussagen, die immer, also wirklich immer, wahr sind. Denk an wissenschaftliche Fakten oder Dinge, die einfach passieren. Wenn da ein 'vielleicht' ist, passt er nicht. "If there's any 'maybe', it's not Zero Conditional."
frontend.learn_grammar.from_rule: Zero Conditional: Fakten und Anweisungen
💡

Denk dran: "Immer wahr"!

Bevor du Zero Conditional nutzt, frag dich: Ist das *immer* wahr? Wenn da ein 'might' oder 'maybe' ist, brauchst du wahrscheinlich ein anderes Conditional. Bleib bei Fakten! Wie in: "If you don't eat, you get hungry."
frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten (If vs. When)

Wichtige Vokabeln (5)

condition a state or requirement inevitable certain to happen routine a sequence of actions regularly followed instruction detailed information telling how to do something possibility a thing that may happen

Real-World Preview

thermometer

Explaining a natural phenomenon

Review Summary

  • If + Present Simple, Present Simple
  • If + Present Simple, Present Simple
  • If + Present Simple, Imperative
  • If/When + Present Simple, Present Simple
  • Zero (Fact) vs First (Possibility)

Häufige Fehler

Do not use 'will' in the 'if' clause of a zero conditional. Keep both parts in the present simple.

Wrong: If I will go to the park, I feel happy.
Richtig: If I go to the park, I feel happy.

When giving instructions, use the imperative form (verb base), not the gerund.

Wrong: If you are cold, putting on a coat.
Richtig: If you are cold, put on a coat.

This refers to a specific future event, so the first conditional is required.

Wrong: If it rains tomorrow, the grass is wet.
Richtig: If it rains tomorrow, the grass will be wet.

Next Steps

You have mastered the language of truth. Keep practicing!

Write 5 facts about your favorite hobby.

Continue to: Planning for Real Future Possibilities

Schnelle Übung (10)

Finde und korrigiere den Fehler im folgenden Zero Conditional Satz.

Find and fix the mistake:

When it rains, the roads will get slippery.

✓ Correct! ✗ Not quite. Correct answer: When it rains, the roads get slippery.
Der Zero Conditional erfordert das Present Simple in beiden Teilsätzen, um eine allgemeingültige Wahrheit auszudrücken. 'Will get' sollte 'get' sein.

frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten

Welcher Satz verwendet das Zero Conditional korrekt?

Choose the correct sentence:

✓ Correct! ✗ Not quite. Correct answer: If you heat water, it boils.
Sowohl der 'if'-Satz als auch der Hauptsatz im Zero Conditional müssen im Simple Present stehen, um eine universelle Wahrheit auszudrücken.

frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten (If vs. When)

Welcher Satz nutzt den Conditional richtig?

Wähl den richtigen Satz:

✓ Correct! ✗ Not quite. Correct answer: If it rains, we will stay inside.
Die erste Option nutzt den First Conditional für eine zukünftige Möglichkeit korrekt: 'if' + Simple Present im Bedingungssatz, 'will' + Grundform im Ergebnissatz. Die dritte Option würde bedeuten, dass wir immer drinnen bleiben, wenn es regnet, nicht nur ein Plan für einen spezifischen zukünftigen Regen.

frontend.learn_grammar.from_rule: Zero vs First Conditional: Hauptunterschied

Finde und korrigiere den Fehler in dieser allgemeinen Wahrheit.

Find and fix the mistake:

If you will drop glass, it will break.

✓ Correct! ✗ Not quite. Correct answer: If you drop glass, it breaks.
Der Zero Conditional verwendet das Simple Present in beiden Satzteilen, um eine allgemeine, immer wahre Tatsache auszudrücken, nicht eine zukünftige Möglichkeit. Die Verwendung von 'will' ist hier falsch.

frontend.learn_grammar.from_rule: Zero Conditional: Fakten und Anweisungen

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

When she will travel, she always buys souvenirs.

✓ Correct! ✗ Not quite. Correct answer: When she travels, she always buys souvenirs.
Das Nullkonditional verwendet die Simple Present Form in beiden Satzteilen ('when'-Satz und Hauptsatz) für regelmäßige Gewohnheiten. 'Will' ist hier falsch.

frontend.learn_grammar.from_rule: Zero Conditional: Gewohnheiten und Routinen

Welcher Satz drückt eine Regel oder Tatsache korrekt aus?

Wähle den korrekten Satz:

✓ Correct! ✗ Not quite. Correct answer: When I study hard, I pass.
Dieser Satz verwendet das Simple Present in beiden Satzteilen korrekt, um ein konsistentes Ergebnis einer Gewohnheit oder einer allgemeinen Wahrheit zu beschreiben, was dem Zero Conditional entspricht.

frontend.learn_grammar.from_rule: Zero Conditional: Fakten und Anweisungen

Wähle die richtige Verbform, um den Zero Conditional Satz zu vervollständigen.

If you ___ (mix) red and blue, you get purple.

✓ Correct! ✗ Not quite. Correct answer: mix
Beide Teilsätze im Zero Conditional verwenden das Present Simple. 'Mix' ist die korrekte Present Simple Form.

frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten

Wähle die korrekte Form, um die Anweisung zu vervollständigen.

If the kettle ___, it means the water is boiling.

✓ Correct! ✗ Not quite. Correct answer: whistles
Für den Zero Conditional verwenden beide Satzteile das Simple Present, um eine immer wahre Tatsache zu beschreiben. Das Subjekt 'kettle' ist Singular, daher bekommt das Verb ein '-s'.

frontend.learn_grammar.from_rule: Zero Conditional: Fakten und Anweisungen

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

When it rains, the roads will get slippery.

✓ Correct! ✗ Not quite. Correct answer: When it rains, the roads get slippery.
Das Zero Conditional beschreibt Dinge, die immer wahr sind. Daher sollte 'will get' zu 'get' (Simple Present) geändert werden, um diese Sicherheit widerzuspiegeln, und nicht eine Zukunftsvorhersage.

frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten (If vs. When)

Wähle die richtige Form, um den Satz zu vervollständigen.

If you don't study, you ___ your exams.

✓ Correct! ✗ Not quite. Correct answer: fail
Für allgemeine Wahrheiten im Zero Conditional verwenden beide Satzteile den Simple Present. 'Fail' ist die korrekte Simple Present Form.

frontend.learn_grammar.from_rule: Nullkonditional: Allgemeine Wahrheiten (If vs. When)

Score: /10

Häufige Fragen (6)

Der Zero Conditional wird verwendet, um über allgemeine Wahrheiten, wissenschaftliche Fakten, Gewohnheiten und Anweisungen zu sprechen – Dinge, die immer wahr sind und ein vorhersehbares Ergebnis haben. Zum Beispiel:
If you heat water, it boils.
Du bildest den Zero Conditional, indem du in beiden Satzteilen das Present Simple verwendest:
If/When + Present Simple, Present Simple
. Zum Beispiel:
When I eat too much, I feel sick.
Es wird verwendet, um über Dinge zu sprechen, die *immer wahr* sind oder *regelmäßig* für eine bestimmte Person oder Gruppe passieren. Stell es dir so vor, als würdest du die vorhersehbaren Muster von jemandem erklären, wie
If I get stressed, I go for a walk.
Du benutzt die Simple Present Form in beiden Satzteilen – im 'if' (oder 'when')-Satz und im Hauptsatz. Die Struktur ist
If/When + Subjekt + Simple Present, Subjekt + Simple Present.
Der Zero Conditional wird für Dinge verwendet, die immer wahr sind, wie wissenschaftliche Fakten, universelle Wahrheiten oder allgemeine Gewohnheiten. Er beschreibt eine Ursache, die konsequent zu einem bestimmten Effekt führt:
If you heat ice, it melts.
Du bildest ihn mit 'if' oder 'when', gefolgt vom present simple im Bedingungssatz, und wieder dem present simple im Ergebnissatz. Zum Beispiel:
If it rains, the ground gets wet.
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