It would be an adverb. If you said "I willingly gave up my last cookie," the word "willingly" would be an adverb because it describes a verb. Adverbs typically modify verbs, adjectives, or other adverbs.
The word willingly is an adverb.
The adjective form of willingly is willing.
an adverb
part of speech
Adjective
What part of speech is thaw
The part of speech for oscillate is verb.
An adjective is a part of speech.
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
what part of speech is work
adverb
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.
The word speech is a noun.
Adjective
No, but it's part of a noun which the noun is the part of speech.
Yes, conjunction is a part of speech.
What part of speech is thaw