Adverb: He came then.
Adverbial Phrase: He came at that time.
Adverb: He behaved with me rudely.
Adverbial Phrase: He behaved with me in a rude manner.
Adverb: I'll come back soon.
Adverbial Phrase: I'll come back in no time.
Adverb: He did it neatly.
Adverbial Phrase: He did it with neatness.
Adverb: We ran speedily.
Adverbial Phrase: We ran with speed.
Adverb: Do it hurriedly.
Adverbial Phrase: Do it in a hurry.