Introduction
Auxiliary verbs (Hilfsverben) are essential for forming various tenses and grammatical structures. The three main auxiliary verbs in German are haben (to have), sein (to be), and werden (to become/will).
Haben (to have)
Haben is primarily used to form the perfect tenses with most German verbs.
Present Tense Conjugation of haben
ich habe | I have |
du hast | you have (informal singular) |
er/sie/es hat | he/she/it has |
wir haben | we have |
ihr habt | you have (informal plural) |
sie/Sie haben | they/you have (formal) |
Usage of haben:
- Perfect tense formation: Used with most transitive (verbs that take a direct object) and many intransitive verbs (verbs that don't take a direct object)
- Ich habe einen Brief geschrieben. (I have written a letter.)
- Sie haben viel gelernt. (They have learned a lot.)
Example:
Sein (to be)
Sein serves two main functions: as a linking verb and as an auxiliary verb for certain intransitive verbs in perfect tenses.
Present Tense Conjugation of sein:
ich bin | I am |
du bist | you are (informal singular) |
er/sie/es ist | he/she/it is |
wir sind | we are |
ihr seid | you are (informal plural) |
sie/Sie sind | they/you are (formal) |
Usage of sein:
- Perfect tense formation: Used with intransitive verbs indicating movement or change of state
- Er ist nach Berlin gefahren. (He has gone to Berlin.)
- Sie ist gestern angekommen. (She arrived yesterday.)
Example:
- As a linking verb:
- Sie ist Lehrerin. (She is a teacher.)
- Wir sind müde. (We are tired.)
Example:
A linking verb is a verb that connects the subject of a sentence with a subject complement, which describes or identifies the subject.
Werden (to become/will)
Werden has multiple functions in German, including forming the future tense and passive voice.
Present Tense Conjugation of werden:
ich werde | I become/will |
du wirst | you become/will (informal singular) |
er/sie/es wird | he/she/it becomes/will |
wir werden | we become/will |
ihr werdet | you become/will (informal plural) |
sie/Sie werden | they/you become/will (formal) |
Usage of werden:
- Future tense formation: Used with the infinitive form of the main verb
- Ich werde morgen kommen. (I will come tomorrow.)
- Sie werden den Film sehen. (They will see the movie.)
Example:
- Passive voice formation: Used with the past participle of the main verb
- Der Brief wird geschrieben. (The letter is being written.)
- Die Ergebnisse werden veröffentlicht. (The results are being published.)
Example:
- As a full verb: Expresses a change of state or condition
- Er wird Arzt. (He is becoming a doctor.)
- Das Wetter wird kälter. (The weather is getting colder.)
Example:
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