Questions & Answers about Í lok vikunnar mun hún hafa klárað öll verkefnin sín.
„Mun hún hafa klárað“ is the future perfect:
- mun = will
- hafa klárað = have finished
So: „mun hún hafa klárað“ = “she will have finished”, i.e. the action is completed before a certain point in the future (here: the end of the week).
If you said „mun hún klára öll verkefnin sín“, that’s more like “she will finish all her tasks” (sometime in the future, not necessarily by a specific deadline).
English has the same contrast:
- She will finish her tasks. (simple future)
- She will have finished her tasks (by the end of the week). (future perfect)
Icelandic mirrors that contrast with mun + hafa + past participle for the future perfect.
Icelandic main clauses are basically verb-second (like German): the finite verb tends to be in the second slot in the sentence.
The structure here is:
- Í lok vikunnar – adverbial phrase (“at/by the end of the week”)
- mun – finite verb (future auxiliary)
- hún – subject
- hafa klárað öll verkefnin sín – rest of the verb phrase + object
If you started with the subject instead, you’d say:
- Hún mun hafa klárað öll verkefnin sín í lok vikunnar.
Same meaning. Moving „Í lok vikunnar“ to the front just emphasizes the time frame more strongly and still obeys the verb‑second pattern: [time] – [finite verb] – [subject] – …