Breakdown of Folglich ist der Tiefschlaf sehr erholsam.
sein
to be
sehr
very
folglich
consequently
der Tiefschlaf
the deep sleep
Questions & Answers about Folglich ist der Tiefschlaf sehr erholsam.
Why does the verb ist come immediately after folglich?
Folglich is a conjunctive adverb, not a subordinating conjunction like wohingegen (whereas). When an adverb starts a main clause, it takes up the first position. The verb must then take the second position to satisfy the standard V2 (verb-second) rule: Folglich (1) ist (2) der Tiefschlaf (3).
Can I use deshalb instead of folglich here?
Yes, they are mostly interchangeable synonyms meaning "therefore" or "consequently." However, folglich specifically emphasizes a strict logical consequence (literally "following from this"), making it sound slightly more formal and analytical than the everyday deshalb.
Does folglich have to be at the beginning of the sentence?
No, it can also sit in the middle of the sentence. If you put the subject first, folglich drops behind the conjugated verb: Der Tiefschlaf ist folglich sehr erholsam.
How does the suffix -sam work in the word erholsam?
The adjective erholsam (restful) comes from the reflexive verb sich erholen (to recover or relax). The German suffix -sam is similar to the English "-ful" or "-some"—it attaches to verbs or nouns to describe something that produces a specific effect or has a certain tendency.