beautifully can that word be an adverb and and adjective? Can any word that you add ' ly' to be an adjective at any time.
Beautifully is only an adverb. Beautiful is the adjective.
Most words that end in -ly are adverbs made from adjectives -- carefully, strangely, terribly, etc. However, a few adjectives end in -ly -- friendly and lonely come to mind.
When you're in doubt about a word's part of speech, look it up in a dictionary.