2. Noun used adverbially: [I walked a mile].
3. Infinitive used adverbially: [We were called together to decide an important question].
4. Adverbial phrase: [She ran along the road].
5. Adverbial clause: [Go when you can].
6. Nominative absolute: [The speeches being over, the audience dispersed].
Occasionally, adverbs and phrases of adverbial character modify the entire thought in a sentence, rather than some single word: [To speak plainly, I cannot go. Perhaps I may help you].
LIST OF SPECIAL WORDS
+86. Special Words.+—A list is here given of words which appear as various parts of speech:—-
+a+ (1) Adjective: A book. (2) Preposition: I go a-fishing.
+about+ (1) Preposition: Walk about the house. (2) Adverb: We walked about for an hour. By, over, up, etc., are used in the same way.