Questions & Answers about Hún er ennþá þreytt eftir ferðalagið.
Because the adjective agrees with the subject’s grammatical gender. Hún is feminine, so the predicate adjective is feminine singular nominative: þreytt. Other common forms:
- Masculine singular: þreyttur
- Feminine singular: þreytt
- Neuter singular: þreytt (same spelling as fem.)
- Plural: þreyttir (masc), þreyttar (fem), þreytt (neuter/mixed)
In main clauses, Icelandic is verb‑second. The neutral place for adverbs like ennþá is after the finite verb and before the adjective: Hún er ennþá þreytt...
For emphasis you can front it: Ennþá er hún þreytt...
Placing it after the adjective (Hún er þreytt ennþá) can sound like an afterthought and is less neutral.