Complex sentence: Compared to other lexical categories, Icelandic adverbs are relatively simple, and are not declined, except in some cases for comparison, and can be constructed easily from adjectives, nouns and verbs.
Split into simpler sentences: Compared to other lexical categories, Icelandic adverbs are relatively simple, and are not declined, except in some cases for comparison. They can be constructed easily from adjectives, nouns and verbs.