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Autor: Olena Bazalukova, 30.06.2026
52
telc Deutsch B1

Sprachbausteine Part 1:
all the grammar and the best tips

Which grammar do you really need to know for Sprachbausteine Part 1? Here you find all the important areas with clear examples, plus a tried-and-tested step-by-step strategy and a checklist for learning.

1

Verbformen (verb forms): the heart of it

Verbformen (verb forms) are the most important area in Part 1. You have to recognise the right tense and the right form confidently.

Tenses

  • Präsens (present): Ich arbeite hier seit zwei Monaten. (I have been working here for two months.)
  • Präteritum (simple past): Am Anfang war ich nervös. (At the beginning I was nervous.)
  • Perfekt (present perfect): Ich habe einen Job gefunden. (I have found a job.)

Participle, infinitive and zu-infinitive

Check the signal word in the sentence:

Signal in the sentence Form Example
haben / sein Partizip II (past participle) Ich habe es gemacht.
modal verb infinitive without zu Ich muss es machen.
versuchen, sich lohnen ... infinitive with zu Ich versuche, es zu machen.

Auxiliary haben or sein?

In the Perfekt some verbs need sein instead of haben. These are above all verbs of movement and change:

  • with sein: gehen, kommen, fahren, fliegen, bleiben, passieren (Ich bin geblieben. / I stayed.)
  • with haben: most other verbs (Ich habe gearbeitet. / I worked.)
📝 Key point

First look for the auxiliary or modal verb in the sentence. It tells you immediately which form the other verb must have.

2

Konnektoren (connectors) and word order

Konnektoren (connectors) join sentences. Important is not only the meaning, but also the word order – that is, where the verb stands.

Meaning Connectors Word order
reason weil (subordinate clause), denn (main clause) weil → verb at the end; denn → normal position
contrast aber, sondern; obwohl; trotzdem aber/sondern → normal; obwohl → verb at the end; trotzdem → verb right after
aim damit, um ... zu verb at the end
condition / time wenn, als, falls verb at the end

als or wenn?

  • als – a one-time event in the past: Als ich ankam, regnete es. (When I arrived, it was raining.)
  • wenn – something that repeats, or a condition: Immer wenn ich komme, ist es ruhig. (Whenever I come, it is quiet.)
  • wann – only in questions or indirect questions: Ich weiß nicht, wann er kommt. (I do not know when he comes.)
Example

Ich freue mich, (...) ich dich endlich wiedersehe. (I am glad ... I finally see you again.)
a) als    b) wenn    c) wann

Correct: b) wenn. It is about the future, not a one-time event in the past. als and wann do not fit.

3

Kasus (case) and Deklination (declension)

Articles, possessive articles and adjectives change their ending according to the case. You have to recognise the case from the sentence.

Case Question / signal Example (der Mann)
Nominativ (nominative) Wer oder was? (who or what? / subject) Der Mann kommt.
Akkusativ (accusative) Wen oder was? (whom or what? / object) Ich sehe den Mann.
Dativ (dative) Wem? (to whom?) / after a dative preposition Ich danke dem Mann.
Genitiv (genitive) Wessen? (whose?) / after a genitive preposition das Auto des Mannes

Adjective endings briefly explained

  • with a definite article (der, die, das): mostly ending -e or -ender gute Freund, mit dem guten Freund
  • without an article: the adjective carries the strong ending – guter Kaffee, gute Freunde

Prepositions with genitive

These prepositions require the Genitiv: trotz, wegen, während, statt. Example: trotz des Regens (despite the rain).

💡 Tip

First determine the case, then the ending. Ask: is the word subject, object, or does a preposition stand before it? From that the right form follows.

4

Präpositionen (prepositions)

With prepositions you have to know two things: the right preposition and the right case.

Two-way prepositions

The prepositions an, auf, in, über, unter, vor, hinter, neben, zwischen can take Dativ or Akkusativ:

  • Wo? (place, no movement) → Dativ: Ich bin in dem (im) Haus. (I am in the house.)
  • Wohin? (direction, movement) → Akkusativ: Ich gehe in das (ins) Haus. (I go into the house.)
Example

Am Wochenende fahren wir (...) die Berge. (At the weekend we drive ... the mountains.)
a) in den    b) in dem    c) im

Correct: a) in den. fahren is a movement (Wohin?), so accusative: in die Berge. With masculine singular it would be in den.

Contractions

Preposition and article are often contracted: in dem = im, an dem = am, zu dem = zum, zu der = zur, in das = ins.

🎯 Tip

With two-way prepositions always ask: Wo (place) or Wohin (movement)? This one question decides between Dativ and Akkusativ.

5

Pronouns and pronominal adverbs

Personal pronouns in the right case

Pay attention to the case: Er hilft mir (he helps me / dative), Er sieht mich (he sees me / accusative).

Relative pronouns

The relative pronoun follows the reference word (gender, number) and its role in the subordinate clause (case).

Example

Das ist der Kollege, (...) ich oft helfe. (That is the colleague ... I often help.)
a) der    b) den    c) dem

Correct: c) dem. helfen requires the Dativ: dem ich oft helfe. der (nominative) and den (accusative) do not fit.

Pronominal adverbs (da-words)

When a verb stands with a fixed preposition and the object is a thing, a da-word (da-Wort) is formed:

Verb + preposition da-word
sich freuen aufdarauf
denken andaran
sprechen / erzählen vondavon
sich kümmern umdarum
📝 Tip

Always learn verbs together with their preposition. Then you find the right da-word immediately too.

6

Subjunctive and modal verbs

Konjunktiv II (subjunctive II)

The Konjunktiv II expresses politeness or something unreal. Important: sein and haben have their own forms.

  • seinwäre: Das wäre schön. (That would be nice.)
  • habenhätte: Ich hätte gern einen Kaffee. (I would like a coffee.)
  • other verbs → often würde + infinitive: Ich würde gern kommen. (I would like to come.)

Modal verbs and their meaning

Modal verb Meaning
könnenability, possibility
müssennecessity
wollenintention, will
möchtenpolite wish
dürfenpermission
solleninstruction, recommendation
Example

Ich (...) Sie höflich um Hilfe bitten. (I ... to ask you politely for help.)
a) muss    b) möchte    c) soll

Correct: b) möchte. möchte fits the polite request. muss (necessity) and soll (instruction) give a different sense here.

7

Checklist: what do I need to know?

If you master these areas confidently, you are well prepared for Part 1:

Area This is what you should be able to do
Verbformen (verb forms) Präsens, Präteritum, Perfekt; Partizip II; infinitive with and without zu; haben or sein in the Perfekt
Konnektoren (connectors) weil, denn, obwohl, trotzdem, damit, aber, sondern; als / wenn / wann; right word order
Kasus and Deklination (case and declension) Nominativ, Akkusativ, Dativ, Genitiv; adjective endings; prepositions with Genitiv
Präpositionen (prepositions) two-way prepositions (Wo/Wohin); contractions (im, am, zum, zur, ins)
Pronomen (pronouns) personal pronouns in the right case; relative pronouns; da-words (darauf, daran, davon)
Subjunctive and modal verbs wäre, hätte, würde; meaning of können, müssen, wollen, möchten, dürfen, sollen
Small words schon, noch, nur, einfach, erst; fixed combinations like noch nicht, nicht mehr, immer noch
📝 Learning tip

Work through these areas one after another. After each area do a few gap texts and always read the explanation. This way you quickly see where you still have to practise.

👉 All exercises for the telc B1 exam
8

FAQ on grammar and tips

Which grammar is most important for Part 1?
Most important are verb forms, connectors and case/declension. These three areas come up most often. Whoever masters them confidently gains the most points.
Do I have to learn many words by heart?
In Part 1 it is mainly about grammar, not about new vocabulary. It is important, however, to learn verbs with their fixed preposition, for example sich freuen auf or sich kümmern um.
How do I tell als and wenn apart?
als stands for a one-time event in the past, wenn for something that repeats or for a condition. wann is used only in questions or indirect questions.
How do I best learn for Part 1?
Always practise with whole gap texts, not with single grammar sentences. After every exercise read the explanation and ask yourself which grammar was tested.
What do I do if I do not know a gap?
Never leave the gap empty. First cross out an option that is certainly wrong. Then you have a 50-50 chance. Guessing is better than entering nothing.

Basis for structure and task type: official telc practice test Zertifikat Deutsch / telc Deutsch B1, telc gGmbH, Frankfurt a. M. You find the official practice test free at www.telc.net.