Websters: adjective
Popular is an adjective. It is used to describe something that is well-liked or widely favored by many people.
The adverb form of the adjective popular is popularly.
The noun suspect has an adjective suspected, which has no adverb form. It also has the adjective "suspecting" which has the adverb form "suspectingly" (it is much more popular in the negative form "unsuspectingly"). Another related adjective, suspicious, has the adverb form "suspiciously."
Dark can be an adjective or a noun. Darkly is an adverb.
Adverb.Here is an adverb, not an adjective.
its an adverb an adjective is a descriptive word an adverb is a feeling
An adverb describes a verb, an adjective or another adverb.
It can be an adjective OR an adverb. adjective -- You dog is a friendly dog adverb -- She always talks friendly to me
Nervous is an adjective. The adverb form is nervously.
Shyly is an adverb. The adjective form is just shy.
Yes, "especially" can function as both an adverb and an adjective. As an adverb, it modifies a verb, an adjective, another adverb, or a sentence. As an adjective, it describes a noun.
'The' is neither an adjective nor an adverb. It is an article.
No, it is not. It is an adverb, the adverb form of the adjective unsteady.