In subordinate clauses Adverbs must follow the subordinating conjunction and the subject noun or pronoun, and usually also follow most accusative and dative nouns or pronouns. This also applies to adverbs in relative clauses. Da ist mein Computer, derallerdings nicht funktioniert. There is my computer, which , however , does not work. These are equivalent to nevertheless .
Shellfish have no head, but they nevertheless lead a complex life.
The distinction between them is tricky, but important. Use also , but not so , to connect two statements that are logically equivalent. Ein Atom besteht aus Protonen, Neutronen und Elektronen. Ein Atom besteht aus Protonen, Neutronen und Elektronen. An atom consists of protons, neutrons and electrons.