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An adverbial clause is a dependent clause that functions as an adverb; that is, the entire clause modifies a verb, an adjective, or another adverb. As with all clauses, it contains a subject and predicate, although the subject as well as the (predicate) verb may sometimes be omitted and implied (see below). An adverbial clause is commonly, but not always, fronted by a subordinate conjunctionsometimes called a trigger word. (In the examples below the adverbial clause is italicized and the subordinate conjunction is bolded.) * Mary, the aspiring actress, became upset ''as soon as she saw the casting list''. ::(subject: ''she''; predicate: ''saw the casting list''; the clause modifies the verb ''became'') * Peter Paul, the drama teacher, met with Mary ''after she came to the next class.'' ::(explicit subject: ''she''; predicate: ''came to the next class.''; predicate (verb): ''came''; the clause modifies the verb ''met'';) * He talked carefully ''in order to appear fair.'' * He talked carefully ''in order .. ('he' ) appear fair.'' ::(implied subject, ''he'', is omitted; predicate (verb): ''appear''; the clause modifies the adverb ''carefully'') * The little boy preferred fierce dinosaurs, ''as T rex''. * The little boy preferred fierce dinosaurs, ''as () T rex''. ::(subject of the clause: ''T rex''; predicate of the clause: ''()'', implied; the clause modifies the adjective ''fierce''.) According to Sidney Greenbaum and Randolph Quirk, adverbial clauses function mainly as adjuncts or disjuncts, which parts also perform in a sentence as adverbial phrases or as adverbial prepositional phrases (''Greenbaum'' and ''Quirk'',1990). Unlike clauses, phrases do not contain a subject and predicate; they are contrasted here: * We left the convention ''the day before.'' ::(adverbial phrase; contains no subject or predicate) * We left ''before the speeches.'' ::(adverbial prepositional phrase; contains no subject or predicateand no verb (action) is implied) * We left ''after the speeches ended.'' ::(adverbial clause; contains subject and predicate) * We left ''after the speeches.'' ::or, (''".. after the speeches ()"'') ::(adverbial clause; contains subject and predicate, but the verb '' 'ended' '' is omitted and implied) ==Types== Adverbial clauses are divided into several groups according to the actions or senses of their conjunctions: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Adverbial clause」の詳細全文を読む スポンサード リンク
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