'Haben' vs 'hatten' when using the past perfect. So I know with the perfect tense you can say, for example:
Ich habe einen Freund besucht.
I was wondering in what situation you would use 'hatten' instead, like:
Ich hatte einen Freund besucht.
Are the German native speakers use Perfekt or Präteritum in everyday life? Could you please clarify?