I. Theory
Like in English, superlative constructions can be used as adverbs in German. Some English examples include: “at (the) least,” “at the latest,” “at all possible.”In German, the superlative form is formed by simply adding -(e)st or -estens to the end of the adjective.
| Ich muss meinen Aufsatz bis spätestens Freitag abliefern. I have to turn in my essay by Friday at the latest. Er geht möglichst oft ins Fitnessstudio. He goes to the gym as often as possible. |