Perfekt vs Präteritum
When to Use
Perfekt (haben/sein + Partizip II) is standard in spoken German. Präteritum (simple past stem change) is used in written/formal German and narration. Exception: sein, haben, and modal verbs (können, müssen, etc.) almost always use Präteritum even in speech — 'Ich war müde' not 'Ich bin müde gewesen'.
Comparison
| Perfekt | Präteritum | |
|---|---|---|
| Usage | Spoken German | Written / formal German |
| Formation | haben/sein + Partizip II | Verb stem change |
| Modal verbs | Rare (awkward) | Standard (ich konnte, musste) |
| sein / haben | Rare | Preferred (war, hatte) |
| In narration | Unusual | Standard |
Examples
Correct
Ich habe gegessen. (spoken)
Wrong
Ich habe geesst.
Correct
Er war müde.
Wrong
Er ist müde gewesen.
Correct
Sie konnte schwimmen.
Wrong
Sie hat schwimmen können.
Tips
In conversation, always use Perfekt — except for war, hatte, konnte, musste, wollte, sollte, durfte.
When writing essays or stories, switch to Präteritum for a more literary style.
The 6 exceptions (sein, haben + 4 modals) are the most common verbs — practice them first!
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