Zuerst and Zuletzt...declinable?
Hi, Are Zuerst and Zuletzt declinable like Erst and Letzt?
Also, first and last is Erst and letzt, correct?
erste and letzte are adjectives, they go with nouns and therefore are declined.
zuerst and zuletzt are adverbs, you could translate them as "firstly" and "lastly", in a way. Adverbs don't go with nouns and aren't declined.