Das Team arbeitet am längsten, wenn die Stimmung am besten ist.

The team works the longest when the mood is at its best.

Breakdown of Das Team arbeitet am längsten, wenn die Stimmung am besten ist.

• sein: to be
• arbeiten: to work
• wenn: when
• das Team: the team

Questions & Answers about Das Team arbeitet am längsten, wenn die Stimmung am besten ist.

Why is am längsten used instead of just länger or längst?

am längsten is the superlative form (the “longest”) when describing duration with verbs.

• länger is the comparative (“longer”).
• längst is an absolute superlative used without am, but mostly in fixed expressions (e.g. längst überfällig = long overdue).
  To say “works the longest,” German uses am + adjective + -en.

How exactly do you form the superlative with am in German?

The pattern is:

1. Take the adjective or adverb (here lang).
2. Add -sten or -sten depending on the ending (here längst with an umlaut).
3. Precede it with am (which is a contraction of an dem, but here it’s just the standard superlative marker).
   So: lang → längst → am längsten.
   You use this to say “in the most … manner” or “for the most … time.”

Why is am besten used in the second clause and what does it mean here?

am besten is the superlative of gut (good), meaning “best.” In wenn die Stimmung am besten ist, it literally means “when the mood is at its best.”
Here it indicates the optimal condition under which the team’s work lasts the longest.