C2 Adjectives & Adverbs 5 min read Difficile

Das Gerundiv (Partizip I mit 'zu') als attributive Passivform

The Gerundiv is a sophisticated adjective form expressing that a noun must or can undergo a specific action.
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Grammar Rule in 30 Seconds

The Gerundiv turns a passive verb into an adjective, meaning 'that which must be done'.

  • Use 'zu' + Partizip I + adjective ending: 'die zu lösende Aufgabe' (the task to be solved).
  • It only works with transitive verbs (verbs that take an accusative object).
  • It implies necessity or possibility, similar to 'must be' or 'can be'.
zu + Verb-stamm + end + Noun

Overview

Welcome to the world of high-level German. At the C2 level, it is no longer just about being understood. It is about elegance, precision, and style.
The Gerundiv (also known as the Partizip I mit zu) is one of the most sophisticated tools in your grammar toolkit. It allows you to pack a lot of information into a single adjective. Think of it as a grammar tuxedo.
It is formal, sleek, and makes you look like a pro. Essentially, this structure turns a verb into an adjective that expresses either necessity or possibility. It replaces clunky relative clauses like
the task that must be done
with a single, powerful phrase: the to-be-done task. It is the ultimate shortcut for academic and professional writing.
Yes, even native speakers find this form impressive when used correctly.

How This Grammar Works

This structure functions as an attributive adjective. This means it always sits right before a noun. Its core DNA is passive.
Even though it looks like a present participle (Partizip I), it does not describe someone doing an action. Instead, it describes something that has an action performed upon it. It also carries a modal flavor.
When you use a Gerundiv, you are signaling that something must, should, or can be done. It is like a tiny, invisible müssen or können is hiding inside the word. For example, die zu lösende Aufgabe isn't just a task; it is a task that must or can be solved.
It is a very efficient way to communicate requirements or potential without using extra words.

Formation Pattern

1
Creating the Gerundiv is a mechanical process. Follow these four steps to build it perfectly every time:
2
Start with the word zu.
3
Take the infinitive of a transitive verb (e.g., lesen, reparieren, klären).
4
Add the letter d to the end of the infinitive to form the Partizip I. Now you have zu lesend, zu reparierend, or zu klärend.
5
Add the appropriate adjective ending based on the noun's gender, number, and case. For a feminine noun in the nominative, you get die zu lesende Mail.
6
It is like building a Lego set. If you miss one piece, the whole thing falls apart. Don't forget the zu, or you'll change the meaning entirely!

When To Use It

You will mostly encounter this in formal contexts. It is a staple of legal German, academic papers, and technical manuals. If you are reading a contract or a university syllabus, the Gerundiv will be everywhere.
It is perfect for job interviews when discussing die zu übernehmenden Aufgaben (the tasks to be taken on). Use it when you want to sound objective and professional. It removes the person from the sentence, making it focus entirely on the object and the necessity.
Think of it like a grammar traffic light; it tells the reader exactly what the status of a task is without any fluff.

When Not To Use It

Avoid this in casual conversations. If you tell your friend at a bar that you are looking at the zu bestellende Speisekarte, they might think you have spent too much time reading law books. It is too stiff for a coffee date.
More importantly, never use it with intransitive verbs. You cannot form a Gerundiv from verbs like schlafen, gehen, or lachen. Why?
Because those verbs cannot be passive. You can't must be slept a bed. Also, avoid using it if the action is already completed.
For completed actions, stick to the Partizip II. This form is strictly for things that are still on the to-do list or are potentially possible.

Common Mistakes

The most frequent error is omitting the zu. Without zu, die lesende Frau means the reading woman (active). With zu, die zu lesende Frau would mean
the woman who must be read
(which makes no sense). Another common slip-up is using it with reflexive verbs. You can't really say das zu sich rasierende Gesicht. It just doesn't work. Finally, watch your adjective endings! Because the Gerundiv is long, people often get tired by the end of the word and slap on the wrong ending. Treat it like a marathon; keep your focus until the very last letter. Even experts trip over these long words occasionally.

Contrast With Similar Patterns

It is easy to confuse the Gerundiv with the sein + zu + Infinitiv structure. They mean the same thing, but they play different roles in a sentence. Die Hausaufgabe ist zu machen is a full sentence (predicative).
Die zu machende Hausaufgabe is just a noun phrase (attributive). Think of the first one as a statement and the second one as a label. Also, contrast it with the standard Partizip II.
Die erledigte Arbeit is work that is already finished. Die zu erledigende Arbeit is work that is still staring you in the face. One is a memory; the other is a deadline.

Quick FAQ

Q

Is the Gerundiv the same as the English Gerund (-ing)?

No! The English gerund is a noun. The German Gerundiv is an adjective with a passive meaning.

Q

Can I use it with können instead of müssen?

Yes, context determines if it means must be or can be. For example, eine schwer zu lösende Aufgabe means it is difficult to solve (possibility/ability).

Q

Is it only for writing?

Mostly, yes. In spoken German, we prefer relative clauses or modal verbs because they are easier to process mid-sentence.

Q

Does it have a plural form?

Absolutely. It follows standard plural adjective declension: die zu zahlenden Rechnungen.

Gerundiv Formation

Infinitive Partizip I Gerundiv (Nom. Sg.)
lösen
lösend
die zu lösende Aufgabe
lesen
lesend
das zu lesende Buch
beachten
beachtend
der zu beachtende Punkt
erledigen
erledigend
die zu erledigende Arbeit
untersuchen
untersuchend
die zu untersuchende Frage

Meanings

The Gerundiv is a passive construction used as an adjective to describe a noun that must or can undergo an action.

1

Necessity

Something that must be done.

“Die zu erledigende Arbeit.”

“Das zu reparierende Auto.”

2

Possibility

Something that can be done.

“Ein kaum zu glaubendes Ereignis.”

“Eine leicht zu lösende Aufgabe.”

Reference Table

Reference table for Das Gerundiv (Partizip I mit 'zu') als attributive Passivform
Form Structure Example
Affirmative
zu + Partizip I + Endung
die zu lösende Aufgabe
Possibility
Adverb + zu + Partizip I
leicht zu lösende Aufgabe
Negation
nicht + zu + Partizip I
die nicht zu lösende Aufgabe

Spectre de formalité

Formel
Die zu erledigende Aufgabe.

Die zu erledigende Aufgabe. (Workplace)

Neutre
Die Aufgabe, die erledigt werden muss.

Die Aufgabe, die erledigt werden muss. (Workplace)

Informel
Die Aufgabe, die man machen muss.

Die Aufgabe, die man machen muss. (Workplace)

Argot
Das Ding, das noch weg muss.

Das Ding, das noch weg muss. (Workplace)

Gerundiv Components

Gerundiv

Components

  • zu to
  • Partizip I Present Participle
  • Endung Ending
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Exemples par niveau

1

Das ist schwer.

This is difficult.

2

Ich muss das machen.

I must do this.

1

Die zu lernende Lektion.

The lesson to be learned.

2

Das zu lesende Buch.

The book to be read.

1

Die zu beachtenden Regeln.

The rules to be observed.

2

Das zu lösende Problem.

The problem to be solved.

1

Ein schwer zu erreichendes Ziel.

A goal that is hard to reach.

2

Die zu unterzeichnenden Verträge.

The contracts to be signed.

1

Die noch zu klärenden Fragen.

The questions still to be clarified.

2

Ein kaum zu überbietendes Angebot.

An offer that can hardly be beaten.

1

Die in der Sitzung zu behandelnden Tagesordnungspunkte.

The agenda items to be discussed in the meeting.

2

Ein von allen zu respektierendes Gesetz.

A law to be respected by all.

Facile à confondre

Das Gerundiv (Partizip I mit 'zu') als attributive Passivform vs zu + Infinitiv

Often confused with Gerundiv.

Erreurs courantes

✗

zu machen Aufgabe

✓

zu machende Aufgabe

Missing the participle 'd'.
✗

die zu gehende Straße

✓

die Straße, die gegangen wird

Gehen is intransitive.
✗

die zu lösend Aufgabe

✓

die zu lösende Aufgabe

Missing adjective ending.
✗

das zu habende Buch

✓

das zu lesende Buch

Haben is not used in this passive sense.
✗

die zu sehende Person

✓

die zu sehende Person (rare)

Semantic mismatch; usually used for tasks.

Structures de phrases

Das ist eine ___ ___ Aufgabe.

Real World Usage

Academic Paper very common

Die zu analysierenden Daten.

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💡

Transitivity

Only use with verbs that take an object.

Smart Tips

Use Gerundiv to save space.

Die Aufgabe, die gelöst werden muss. → Die zu lösende Aufgabe.

Prononciation

zu-LÖ-sen-de

Stress

Stress the first syllable of the participle.

Falling

Die zu LÖ-sen-de AUF-gabe.

Declarative statement.

Mémorise-le

Moyen mnémotechnique

Remember 'ZU-D-END': ZU + Partizip + D + ENDing.

Association visuelle

Imagine a sticky note on a pile of files labeled 'TO-DO'. The 'TO-DO' is the Gerundiv.

Rhyme

Mit 'zu' und 'd' wird es fein, so muss das Gerundiv sein.

Story

The professor had a stack of papers. Each paper had a label: 'zu korrigierende Arbeit'. He sighed, knowing he had to finish them.

Word Web

zuPartizipAdjektivPassivNotwendigkeitMöglichkeit

Défi

Write 3 sentences using the Gerundiv for your daily tasks.

Notes culturelles

Used to show high education level.

Derived from Latin Gerundivum.

Amorces de conversation

“

Welche Aufgaben sind heute zu erledigen?

Sujets d'écriture

Beschreibe deine To-Do-Liste.

Erreurs courantes

Incorrect

Correct

Incorrect

Correct

Incorrect

Correct

Incorrect

Correct

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Test Yourself

Fill in the blank.

Die ___ (zu lösen) Aufgabe.

✓ Correct! ✗ Not quite. Correct answer: zu lösende
Adjective ending required.

Score: /1

Exercices pratiques

1 exercises
Fill in the blank.

Die ___ (zu lösen) Aufgabe.

✓ Correct! ✗ Not quite. Correct answer: zu lösende
Adjective ending required.

Score: /1

FAQ (1)

Only in very formal presentations.

Scaffolded Practice

1

1

Mastery Progress

Needs Practice

Improving

Strong

Mastered

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In Other Languages

Spanish high

Gerundivo

Less common in modern Spanish.

French moderate

Gérondif

French uses it for adverbial clauses.

German high

Gerundiv

None.

Japanese partial

～べき (beki)

Japanese uses a suffix, not an adjective.

Arabic low

Ism al-Maf'ul

Arabic uses a specific noun form.

Learning Path

Prerequisites

Previous
Semantische Unterscheidung: Genitivus objectivus und subjectivus
Next
Satzbezogene Relativsätze mit 'was' und 'wo(r)-' Präpositionalpronomen

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