A1 Modal Verbs 1 min read Leicht

The Modal Verb 'Musieť' (To Must)

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Grammar Rule in 30 Seconds

The verb 'musieť' expresses necessity or obligation; it is followed by the infinitive form of the main verb.

  • Conjugate 'musieť' based on the subject: 'Ja musím' (I must).
  • Place the main verb in its infinitive form immediately after: 'Musím ísť' (I must go).
  • For negation, add 'ne-' to the verb: 'Nemusím ísť' (I don't have to go).
Subject + Musieť (conjugated) + Verb (infinitive)

Conjugation of 'Musieť'

Person Singular Plural
1st (Ja/My)
musím
musíme
2nd (Ty/Vy)
musíš
musíte
3rd (On/Ona/Ono/Oni)
musí
musia

Meanings

The verb 'musieť' indicates a strong necessity, obligation, or requirement to perform an action.

1

Strong Obligation

A requirement imposed by external circumstances or rules.

“Musím ísť do práce.”

“Musíš si urobiť úlohu.”

2

Logical Deduction

Assuming something is true because it is the only logical conclusion.

“Je vonku tma, musí byť neskoro.”

“Musí byť hladný, celý deň nejedol.”

Reference Table

Reference table for The Modal Verb 'Musieť' (To Must)
Form Structure Example
Affirmative
Subject + musieť + infinitive
Musím ísť.
Negative
Subject + nemusieť + infinitive
Nemusím ísť.
Question
Musieť + subject + infinitive?
Musíš ísť?
Past
Subject + musel/musela + infinitive
Musel som ísť.
Conditional
Subject + musel by + infinitive
Musel by som ísť.
Prohibition
Nesmieť + infinitive
Nesmieš ísť!

Formalitätsspektrum

Formell
Musím sa dostaviť do zamestnania.

Musím sa dostaviť do zamestnania. (Leaving for work)

Neutral
Musím ísť do práce.

Musím ísť do práce. (Leaving for work)

Informell
Musím bežať do roboty.

Musím bežať do roboty. (Leaving for work)

Umgangssprache
Musím vypadnúť do práce.

Musím vypadnúť do práce. (Leaving for work)

Usage of Musieť

Musieť

Obligation

  • Práca Work
  • Škola School

Deduction

  • Logika Logic
  • Istota Certainty
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Beispiele nach Niveau

1

Musím ísť domov.

I must go home.

2

Musíš piť vodu.

You must drink water.

3

Musíme sa učiť.

We must study.

4

Musia pracovať.

They must work.

1

Nemusíš to robiť.

You don't have to do that.

2

Musím si kúpiť lístok.

I must buy a ticket.

3

Musí byť neskoro.

It must be late.

4

Musíte prísť včas.

You must arrive on time.

1

Musel som to urobiť.

I had to do it.

2

Nemuseli sme tam ísť.

We didn't have to go there.

3

Musí to byť pravda.

It must be true.

4

Musel by si to vedieť.

You would have to know that.

1

Musí sa to vyriešiť čo najskôr.

It must be solved as soon as possible.

2

Nechcem, ale musím.

I don't want to, but I have to.

3

Musel som sa rozhodnúť rýchlo.

I had to decide quickly.

4

Musíte byť trpezliví.

You must be patient.

1

Muselo by sa stať niečo veľmi zlé.

Something very bad would have to happen.

2

Musel som byť v tom čase v práci.

I must have been at work at that time.

3

Nemusí to byť vždy pravda.

It doesn't always have to be true.

4

Musím podotknúť, že je to dôležité.

I must point out that it is important.

1

Muselo sa tak stať, aby sme pochopili.

It had to happen that way for us to understand.

2

Musel by to byť blázon, keby to urobil.

He would have to be a madman to do that.

3

Niet inej cesty, musíme pokračovať.

There is no other way, we must continue.

4

Muselo by sa to brať do úvahy.

It would have to be taken into account.

Leicht verwechselbar

The Modal Verb 'Musieť' (To Must) vs. Musieť vs. Nesmieť

Learners think 'nemusieť' is the opposite of 'musieť'.

The Modal Verb 'Musieť' (To Must) vs. Musieť vs. Potrebovať

Both mean 'need' in some contexts.

The Modal Verb 'Musieť' (To Must) vs. Conjugating the second verb

Learners conjugate the infinitive.

Häufige Fehler

✗

Musím idem

✓

Musím ísť

Never conjugate the second verb.
✗

Musím do školy

✓

Musím ísť do školy

The verb is missing.
✗

Nemusím ísť = I must not go

✓

Nemusím ísť = I don't have to go

Nemusím is lack of obligation.
✗

Musím ísť do práce

✓

Musím ísť do práce

Correct usage.
✗

Musí byť hladný

✓

Musí byť hladný

Correct deduction.
✗

Musím kúpiť chlieb

✓

Musím si kúpiť chlieb

Reflexive 'si' is needed for 'buying for oneself'.
✗

Musím ísť včera

✓

Musel som ísť včera

Wrong tense.
✗

Musel by som ísť

✓

Musel by som ísť

Correct conditional.
✗

Musím to urobil

✓

Musím to urobiť

Wrong aspect.
✗

Musím byť v práci

✓

Musím byť v práci

Correct.
✗

Muselo sa to stalo

✓

Muselo sa to stať

Wrong infinitive.
✗

Musím podotknúť

✓

Musím podotknúť

Correct.
✗

Musel by byť

✓

Musel by byť

Correct.

Satzmuster

Musím ___.

Musíš ___ dnes?

Nemusím ___.

Keby som mohol, nemusel by som ___.

Real World Usage

Social Media constant

Musím zdieľať tento post!

Texting very common

Musím bežať, ozvem sa.

Job Interview common

Musím sa neustále zlepšovať.

Travel common

Musím nájsť najbližšiu stanicu.

Food Delivery occasional

Musím si objednať pizzu.

School very common

Musím odovzdať úlohu.

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💡

Infinitive is Key

Always keep the second verb in the infinitive. It never changes!
⚠️

Don't confuse with prohibition

Nemusím is not 'must not'. Use 'nesmieš' for prohibition.
🎯

Use 'si' for yourself

When doing something for yourself, add 'si' (e.g., Musím si kúpiť).
💬

Be direct

Slovaks appreciate directness. 'Musím' is perfectly polite.

Smart Tips

Don't use 'nemusíš', use 'nesmieš'.

Nemusíš tu fajčiť. → Nesmieš tu fajčiť.

Remember the reflexive 'si'.

Musím kúpiť auto. → Musím si kúpiť auto.

Use 'musieť' in the present first.

Musel som ísť. → Musím ísť.

Use 'musím' to explain your departure.

Odchádzam. → Musím už ísť.

Aussprache

MU-siem

Stress

Stress is always on the first syllable.

mu-SEEM

Vowel Length

The 'í' in 'musím' is long.

Question

Musíš ísť? ↗

Rising intonation at the end.

Einprägen

Eselsbrücke

Think of a 'Must-ache' (mustache) — you MUST grow one to be a real Slovak!

Visuelle Assoziation

Imagine a giant clock ticking loudly. You are running toward a door, looking at your watch. You are saying 'Musím!' because you are late for an important meeting.

Rhyme

Musím, musíš, musí, všetci sme v tom vnútri.

Story

Peter wakes up. He looks at his calendar. 'Musím ísť do školy,' he says. He packs his bag. 'Musím si zobrať knihy.' He runs to the bus stop. 'Musím stihnúť autobus!'

Word Web

musieťpovinnosťmusímmusíšmusímenemusieťnesmieť

Herausforderung

Write down 3 things you must do today using 'Musím...'.

Kulturelle Hinweise

Slovaks are direct with obligations. Using 'musím' is common and not considered rude.

Derived from Proto-Slavic *musěti.

Gesprächseinstiege

“

Čo musíš dnes urobiť?

“

Musíš veľa pracovať?

“

Musel si niekedy zrušiť plány?

“

Čo by si musel urobiť, keby si vyhral milión?

Tagebuch-Impulse

Write about your morning routine.
What are your responsibilities at work/school?
Describe a time you had to change your plans.
If you were the president, what would you make people do?

Häufige Fehler

Incorrect

Richtig

Incorrect

Richtig

Incorrect

Richtig

Incorrect

Richtig

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Test Yourself

Fill in the correct form of 'musieť'.

Ja ___ ísť do školy.

✓ Correct! ✗ Not quite. Correct answer: musím
First person singular is 'musím'.
Fix the sentence. Error Correction

Find and fix the mistake:

Ty musíš ideš domov.

✓ Correct! ✗ Not quite. Correct answer: Ty musíš ísť domov.
Second verb must be infinitive.
Which is correct? Multiple Choice

___ ísť do práce?

✓ Correct! ✗ Not quite. Correct answer: Musíš
Context implies asking someone else.
Reorder the words. Sentence Reorder

Arrange the words in the correct order:

All words placed

Click words above to build the sentence

✓ Correct! ✗ Not quite. Correct answer: Musím ísť domov.
Standard word order.
Translate to Slovak. Übersetzung

I don't have to work.

Answer starts with: Nem...

✓ Correct! ✗ Not quite. Correct answer: Nemusím pracovať.
Negative modal + infinitive.
Conjugate for 'My'. Conjugation Drill

Musieť (My)

✓ Correct! ✗ Not quite. Correct answer: musíme
First person plural is 'musíme'.
Match the person to the form. Match Pairs

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer: musíš
Ty matches musíš.
Complete the dialogue. Dialogue Completion

A: Musíš ísť? B: ___.

✓ Correct! ✗ Not quite. Correct answer: Áno, musím.
Short answer is sufficient.

Score: /8

Ubungsaufgaben

8 exercises
Fill in the correct form of 'musieť'.

Ja ___ ísť do školy.

✓ Correct! ✗ Not quite. Correct answer: musím
First person singular is 'musím'.
Fix the sentence. Error Correction

Find and fix the mistake:

Ty musíš ideš domov.

✓ Correct! ✗ Not quite. Correct answer: Ty musíš ísť domov.
Second verb must be infinitive.
Which is correct? Multiple Choice

___ ísť do práce?

✓ Correct! ✗ Not quite. Correct answer: Musíš
Context implies asking someone else.
Reorder the words. Sentence Reorder

domov / musím / ísť

✓ Correct! ✗ Not quite. Correct answer: Musím ísť domov.
Standard word order.
Translate to Slovak. Übersetzung

I don't have to work.

✓ Correct! ✗ Not quite. Correct answer: Nemusím pracovať.
Negative modal + infinitive.
Conjugate for 'My'. Conjugation Drill

Musieť (My)

✓ Correct! ✗ Not quite. Correct answer: musíme
First person plural is 'musíme'.
Match the person to the form. Match Pairs

Ty -> ?

✓ Correct! ✗ Not quite. Correct answer: musíš
Ty matches musíš.
Complete the dialogue. Dialogue Completion

A: Musíš ísť? B: ___.

✓ Correct! ✗ Not quite. Correct answer: Áno, musím.
Short answer is sufficient.

Score: /8

FAQ (8)

Yes, it works for all tenses. Use 'budem musieť' for future.

No, it is neutral and used everywhere.

Use 'nesmieš'. 'Nemusíš' means 'you don't have to'.

No, it must be followed by a verb.

It is mostly regular, just watch the stem.

Use 'potrebovať'.

Yes, just use question intonation.

Yes, it is standard Slovak.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

German high

müssen

German has more complex modal rules.

French moderate

devoir

Devoir can also mean 'to owe'.

Spanish partial

tener que / deber

Spanish uses a periphrastic structure.

Japanese low

nakereba naranai

Japanese is agglutinative.

Arabic low

yajib

Arabic does not conjugate for person.

Chinese low

bìxū

Chinese has no verb conjugation.

Learning Path

Prerequisites

Previous
The Modal Verb 'Môcť' (To Can)

Related Grammar Rules

A1

The Modal Verb 'Chcieť' (To Want)
A1

The Modal Verb 'Môcť' (To Can)
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