B1 · Mittelstufe Kapitel 13

Rules, Advice, and Instructions

4 Gesamtregeln
48 Beispiele
6 Min.
Regeln in diesem Kapitel Schnelle Übung

Chapter in 30 Seconds

Master the art of giving helpful advice and clear instructions with confidence.

  • Suggest better choices using the modal verb should.
  • Express non-negotiable rules and necessities using must.
  • Link specific conditions to advice and direct commands.
Command the room and guide others with precision.

Was du lernen wirst

Feeling ready to give advice and strong instructions like a pro? This chapter will show you how to use if with commands and express what must be done, helping you guide others clearly and effectively in everyday conversations.

Learning Objectives

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

  1. 1
    By the end you will be able to offer polite recommendations for common problems using should.
  2. 2
    By the end you will be able to state firm legal or personal requirements using must.
  3. 3
    By the end you will be able to construct complex conditional sentences to give advice based on specific situations.

Kapitel-Leitfaden

Overview

As you continue your journey in B1 English grammar, you’re building the skills to connect with people and express yourself clearly in a wide range of situations. This chapter is all about giving effective English rules, advice, and instructions. Imagine being able to help a friend, offer clear guidance, or explain important steps without sounding aggressive or unclear.
That's exactly what you'll learn here!
We'll dive into the subtle art of using words like should to offer helpful recommendations, like
You should try that new cafe.
You'll also master must for those times when something is truly essential, as in
You must submit your report by Friday.
We’ll also explore how to combine these with the first conditional – using if clauses to give advice and commands that are relevant to specific situations, such as
If you want to pass the exam, you should study every day
or
If you see a problem, tell your manager immediately.
By the end, you'll be confidently guiding others and understanding important directions like a native speaker.

How This Grammar Works

Learning to give and understand rules, advice, and instructions effectively makes your English sound much more natural and confident. Let's explore how these pieces fit together, moving from gentle suggestions to strong directives.
First, for friendly advice and recommendations, we use should. This is your go-to for suggesting the best course of action without being too strong or bossy. For example,
You should drink more water
or
They should call their parents more often.
It implies a good idea, but the choice is still up to the listener.
When something is absolutely essential, a strong obligation, or a logical necessity, we use must. This isn't a suggestion; it's a rule, a requirement, or something that is highly certain. Think of signs like
All visitors must check in at reception
or personal vows like
I must finish this project tonight.
If there’s no other option, or the consequences of not doing it are serious, must is the word.
Now, let's add a condition! The first conditional for advice (should) combines a possible future situation with advice. The structure is simple: If + present simple, should + base verb.
This allows you to give advice that is specific and relevant to a particular scenario. For instance,
If you feel tired, you should take a break
or
If it rains tomorrow, we should bring umbrellas.
This makes your advice more practical and targeted.
Finally, we have the first conditional for commands & advice (If + Imperative). Here, instead of using should, you give a direct command or instruction in the second part of the sentence. The structure is: If + present simple, imperative (base verb form).
For example,
If you arrive late, wait outside
or
If you have any questions, ask the teacher.
This is perfect for giving clear, actionable instructions based on a potential future event. These structures together give you a powerful toolkit for guiding conversations and ensuring clarity in your interactions.

Common Mistakes

It's easy to mix up these useful phrases. Here are some common pitfalls and how to avoid them:
  1. 1✗ Wrong: You must try the new coffee shop. (Sounds too strong, like an order)
✓ Correct: You should try the new coffee shop. (A friendly recommendation)
*Explanation:* Use should for suggestions, not must, which implies a necessity or obligation.
  1. 1✗ Wrong: If you want to lose weight, you must to exercise. (Incorrect grammar with to)
✓ Correct: If you want to lose weight, you must exercise. (Correct verb form)
*Explanation:* After modal verbs like must or should, always use the base form of the verb without to.
  1. 1✗ Wrong: If it rains, you should to take an umbrella. (Incorrect grammar with to)
✓ Correct: If it rains, you should take an umbrella. (Correct verb form)
*Explanation:* Like with must, should is followed directly by the base verb form.

Real Conversations

Here’s how these grammar points appear in everyday chats:

A

A

"I'm really struggling with my English homework. It's so difficult!"
B

B

"Oh, really? If you're having trouble, you should ask the teacher for help during office hours. She's very approachable."
A

A

"My flight leaves at 6 AM tomorrow. I'm worried I'll miss it."
B

B

"Wow, that's early! You must set several alarms, and you should pack your bag tonight so you don't forget anything important."
A

A

"I'm going hiking this weekend, but the weather forecast looks a bit unpredictable."
B

B

If the weather changes suddenly, make sure you have a map and a fully charged phone. And if it starts raining heavily, turn back immediately!

Quick FAQ

Q

When should I use should versus must for advice?

Use should for advice, recommendations, or what's generally a good idea. It's a suggestion. Use must when there's a strong obligation, a rule, a necessity, or a strong personal conviction. It implies no real choice.

Q

Can I use if with must?

While grammatically possible (e.g.,

If you must leave, please close the door
), it's less common for *giving advice*. It usually expresses a resignation or necessity already acknowledged. For conditional advice, stick to should or an imperative.

Q

Is you should always polite?

Generally, yes, you should is polite. However, if used too frequently or with a lecturing tone, it can sometimes sound a little preachy. To soften it further, you can say

I think you should...
or
Perhaps you should...

Q

What's the difference between

If you want to...
and
If you need to...
when giving advice?

If you want to...
implies a personal desire or goal (e.g.,
If you want to improve, you should practice daily
).
If you need to...
implies a requirement or necessity (e.g.,
If you need to contact me, call this number
). Both are useful in conditional advice.

Cultural Context

In English, the way we give advice and instructions often reflects politeness and directness. While must clearly states an obligation, it can sometimes sound very direct, almost like an order, especially in informal contexts. Native speakers often prefer should or softer phrases (like
You might want to...
or I suggest you...) even for important advice, to maintain a friendly tone.
Using the first conditional with an imperative ("If you're cold, put on a jacket") is common and generally accepted as clear and direct, but still contextual. Understanding these nuances helps you sound more natural and avoid accidental rudeness.

Wichtige Beispiele (8)

1

You `should really try` the new coffee shop downtown; their lattes are amazing.

Du solltest das neue Café in der Innenstadt wirklich mal probieren; deren Lattes sind fantastisch.

Ratschläge und Empfehlungen geben (Should)
2

I think we `should start` our project early to avoid any last-minute stress.

Ich denke, wir sollten unser Projekt frühzeitig starten, um Last-Minute-Stress zu vermeiden.

Ratschläge und Empfehlungen geben (Should)
3

You **must** hand in your assignment by Friday.

Du musst deine Aufgabe bis Freitag abgeben.

Must: Starke Verpflichtung & Notwendigkeit
4

I **must** remember to call my parents tonight.

Ich muss daran denken, meine Eltern heute Abend anzurufen.

Must: Starke Verpflichtung & Notwendigkeit
5

`If you're hungry, you should grab a snack.`

Wenn du hungrig bist, solltest du einen Snack holen.

Erster Bedingungssatz für Ratschläge (should)
6

`If it rains later, you should take an umbrella with you.`

Wenn es später regnet, solltest du einen Regenschirm mitnehmen.

Erster Bedingungssatz für Ratschläge (should)
7

`If you feel cold, close the window.`

Wenn dir kalt ist, schließ das Fenster.

Erster Bedingungssatz: Befehle & Ratschläge (If + Imperativ)
8

`If you're hungry, grab a snack from the fridge.`

Wenn du Hunger hast, hol dir einen Snack aus dem Kühlschrank.

Erster Bedingungssatz: Befehle & Ratschläge (If + Imperativ)

Tipps & Tricks (4)

💡

Bleib sanft

'Should' ist für sanfte Vorschläge, nicht für strenge Befehle. Es lädt zur Zustimmung ein, anstatt Gehorsam zu fordern, was deinen Rat angenehmer macht. Für starke Verpflichtungen benutzt du 'must', z.B.
You must do it now.
frontend.learn_grammar.from_rule: Ratschläge und Empfehlungen geben (Should)
💡

Denk an 'starke' Verpflichtung

Wenn du es mit 'Es ist absolut notwendig zu' oder 'Es ist eine Regel, dass du' ersetzen könntest, dann ist 'must' wahrscheinlich die richtige Wahl. Es ist stärker als 'should'. Stell dir vor, du bist der Chef und gibst eine Anweisung:
You must complete this report by Friday.
frontend.learn_grammar.from_rule: Must: Starke Verpflichtung & Notwendigkeit
💡

Präsens im 'If'-Satz

Benutze immer das Präsens im 'If'-Teil, auch wenn du über etwas Zukünftiges sprichst. Das 'Zukünftige' kommt vom 'should' im Hauptsatz:
If you feel hungry, you should eat something.
frontend.learn_grammar.from_rule: Erster Bedingungssatz für Ratschläge (should)
💡

Bleib direkt mit dem Imperativ

Denk dran, für deine Anweisung oder deinen Ratschlag die Grundform des Verbs zu benutzen. Lass 'will' oder 'should' im Hauptsatz weg, sonst änderst du die Bedeutung zu einer Vorhersage oder einem Vorschlag. "If you're tired, take a break."
frontend.learn_grammar.from_rule: Erster Bedingungssatz: Befehle & Ratschläge (If + Imperativ)

Wichtige Vokabeln (6)

recommend to suggest something as a good choice mandatory required by law or rules passenger a person traveling in a vehicle instruction detailed information on how to do something prohibit to formally forbid something advice guidance or recommendations

Real-World Preview

plane

At the Airport Security

stethoscope

A Visit to the Doctor

Review Summary

  • Subject + should + Verb (base form)
  • Subject + must + Verb (base form)
  • If + Present Simple, Subject + should + Verb (base)
  • If + Present Simple, [Imperative Verb]

Häufige Fehler

Modal verbs like 'should' and 'must' are followed directly by the base verb. Never use 'to' after them.

Wrong: You should to study more.
Richtig: You should study more.

In conditional advice, the second clause still needs a subject (you, he, she) before the word 'should'.

Wrong: If you are hungry, should eat.
Richtig: If you are hungry, you should eat.

In the 'if' clause of a first conditional, we use the Present Simple, not 'will'.

Wrong: If you will see him, tell him the news.
Richtig: If you see him, tell him the news.

Next Steps

You've taken a huge step toward fluency! Being able to guide others is a key leadership skill in any language. Keep practicing these patterns and you'll be a master communicator in no time.

Write 5 rules for your favorite sport using 'must' and 'should'.

Look at a recipe and identify the conditional instructions.

Continue to: Talking About Facts and Constant Truths

Schnelle Übung (9)

Welcher Satz gibt korrekt Ratschläge?

Wähle den richtigen Satz:

✓ Correct! ✗ Not quite. Correct answer: She should study harder for the test.
'Should' wird von der Grundform des Verbs ('study') gefolgt, nicht 'studies'. 'Must to' ist falsch; 'must' nimmt kein 'to'.

frontend.learn_grammar.from_rule: Ratschläge und Empfehlungen geben (Should)

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

If she will arrive late, she should call us.

✓ Correct! ✗ Not quite. Correct answer: If she arrives late, she should call us.
Im 'if'-Satz des First Conditional verwenden wir das Präsens. Daher ist 'will arrive' falsch; es sollte 'arrives' sein.

frontend.learn_grammar.from_rule: Erster Bedingungssatz für Ratschläge (should)

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

They should to call before visiting.

✓ Correct! ✗ Not quite. Correct answer: They should call before visiting.
Nach dem Modalverb 'should' steht das Hauptverb immer in seiner Grundform, ohne 'to'.

frontend.learn_grammar.from_rule: Ratschläge und Empfehlungen geben (Should)

Wähle die korrekte Form, um den Ratschlag zu vervollständigen.

If you have a headache, you ___ take some medicine.

✓ Correct! ✗ Not quite. Correct answer: should
Wir verwenden 'should', um Ratschläge zu geben. 'Will' sagt ein Ergebnis voraus, und 'can' drückt eine Fähigkeit aus.

frontend.learn_grammar.from_rule: Erster Bedingungssatz für Ratschläge (should)

Wähle die richtige Form, um den Ratschlag zu vervollständigen.

You ___ remember to save your work frequently.

✓ Correct! ✗ Not quite. Correct answer: should
'Should' wird hier verwendet, um Ratschläge oder eine Empfehlung zu geben, die besagt, dass es eine gute Idee ist, die Arbeit oft zu speichern.

frontend.learn_grammar.from_rule: Ratschläge und Empfehlungen geben (Should)

Wähle die korrekte Form, um den Satz zu vervollständigen.

You ___ remember your passport for international travel.

✓ Correct! ✗ Not quite. Correct answer: must
'Must' ist ein Modalverb und wird von der Grundform des Hauptverbs ohne 'to' oder '-s' gefolgt.

frontend.learn_grammar.from_rule: Must: Starke Verpflichtung & Notwendigkeit

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

We must to study for the final exam.

✓ Correct! ✗ Not quite. Correct answer: We must study for the final exam.
Modalverben wie 'must' werden direkt von der Grundform des Hauptverbs gefolgt. Das 'to' ist falsch.

frontend.learn_grammar.from_rule: Must: Starke Verpflichtung & Notwendigkeit

Wähle das korrekte Imperativ-Verb, um den Satz zu vervollständigen.

`If you see a good movie playing, ___ me about it!`

✓ Correct! ✗ Not quite. Correct answer: tell
Nach dem 'if'-Satz verwenden wir die Grundform des Verbs für einen direkten Befehl.

frontend.learn_grammar.from_rule: Erster Bedingungssatz: Befehle & Ratschläge (If + Imperativ)

Finde und korrigiere den Fehler im Satz.

Find and fix the mistake:

`If you are tired, you will go to bed.`

✓ Correct! ✗ Not quite. Correct answer: If you are tired, go to bed.
Der zweite Satzteil sollte ein Imperativ (direkter Befehl) 'go to bed' sein, keine Vorhersage mit 'will'.

frontend.learn_grammar.from_rule: Erster Bedingungssatz: Befehle & Ratschläge (If + Imperativ)

Score: /9

Häufige Fragen (6)

'Should' bedeutet primär, dass es eine gute Idee ist, etwas zu tun, oder dass etwas allgemein erwartet wird. Es wird verwendet, um Ratschläge, Empfehlungen und sanfte Vorschläge zu geben. Stell es dir wie einen hilfreichen Anstoß vor, z.B.
You should try it.
Absolut! Du kannst 'should' verwenden, um dir selbst Empfehlungen zu geben oder darüber nachzudenken, was du für dich selbst am besten hältst. Zum Beispiel:
I should probably get some sleep
oder
I should start that project soon.
A: 'Must' wird hauptsächlich verwendet, um eine starke Verpflichtung, Notwendigkeit oder ein Verbot auszudrücken. Denk daran als ein festes 'erforderlich' oder 'nicht erlaubt'. Wenn du zum Beispiel sagst:
You must follow the rules.
, ist das eine klare Anweisung.
A: Nein, 'must' ist ein Modalverb, was bedeutet, dass es sich anders verhält als regelmäßige Verben. Es ändert seine Form nicht für verschiedene Subjekte oder Zeitformen. Es bleibt immer 'must', egal ob I must oder She must.
Es geht darum, Ratschläge oder Empfehlungen für eine reale und mögliche Situation in der Zukunft zu geben. Du sagst quasi: 'Wenn X passiert, dann solltest du Y tun.' Zum Beispiel: "If you're tired, you should rest."
Ein normales First Conditional mit 'will' sagt ein bestimmtes Ergebnis voraus (
If it rains, we will stay home
). Mit 'should' gibst du stattdessen einen Vorschlag oder Ratschlag:
If it rains, you should take an umbrella.
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