What's the guideline as to when to use Perfekt and Präteritum? I was always taught that the simplest rule is Präteritum (mostly) for written forms, and Perfekt is most common in spoken language. But ...
I have read the question When to use Perfekt and Präteritum? but it doesn't answer my question. I am looking for a rule for beginner / intermediate level learners which tells when to use Perfekt or ...