The word leading is a verb form and a gerund (noun). It can be used as an adjective, but not an adverb. The rarely seen adverb form is "leadingly."
Yes it can be used as an adverb.
Our trip could turn out badly. Bad is not an adverb. Badly is an adverb.
adverb clause
The adverb form is "angrily" (in an angry manner).
Yes. It is a prepositional phrase, used as an adverb.
No. The proper adjective Roman is not used as an adverb. There is a VERY rarely-used adverb, Romanly.
Has is a form of the verb "to have" and is not used as an adverb.
The word "as" can be used as an adverb.
An adverb is used to describe verbs, adjectives, or other adverbs.
Yes it can be used as an adverb.
No. The adverb would be "scarily."
Adverb
No, it is not an adverb. Flouncy is an adjective. There is a seldom-used adverb form "flouncily."
Adverbs are used to describe or modify a verb, an adjective, or another adverb.
One adverb (rarely used) is agreeingly.An adverb more frequently used is agreeably, from the related adjective agreeable.
No, the word "from" is a preposition. It cannot be used as an adverb.
No, it is an adjective. The rarely-used adverb is rockily.