Neither word is an adjective. They are both adverbs, combined to form a question that asks about frequency (answered by adverbs of frequency).
often is an adjective
adjective = raw adverb = often
That is a demonstrative pronoun that often acts as an adjective. I'll have that cake.
Yes, "grouchy" is an adjective used to describe someone who is often irritable or in a bad mood.
No, it is not. However, the past participle of action verbs will often form adjective.
Velvet 'is' an adjective, as well as a noun. The adjective often applies metaphorically for soft textures, not just the woven material.
No, it is a noun, it is often confused as an adjective so i wouldn't give you an F
"Silken" is the usual form, but "silk" itself is often used as what is called a "substantive adjective."
The verb to claim has the participles claimed and claiming. Claimed is more often used as an adjective.
No, it's an adverb of frequency.no its an adverb
Arrogant
The word often is an adverb, a word that modifies a verb, an adjective, or another adverb. Example sentences:My mother often sang for me.The play was the often told story of the beautiful princess and the wicked witch.