The complex sentence with an adverbial clause 389
§ 163. Adverbial clauses are usually classified according to their meaning, that is, according to the relation they bear to the main clause. They differ from nominal and attributive clauses in that they are introduced by conjunctions with a more distinct meaning. Some types of adverbial clauses may be introduced by at least a dozen different conjunctions (as for instance adverbial clauses of time). On the other hand, many of the conjunctions are used to introduce more than one kind of clause (as, since, that, when, now that). In some cases the meanings and functions of the conjunction are so numerous that it is really difficult to say what the basic meaning of the conjunction is, as its function depends on the meaning of the clauses and their relationship.
Conditional clauses may be joined asyndetically, though they have link-inversion in this case. Here the meaning and function of the clause can be inferred only from the meaning of the subordinate and the main clause.
An adverbial clause may qualify the whole main clause, the verbal predicate or any verbal part, and also parts expressed by an adjectiveoradverb. Its position therefore varies: it may be initial, medial, or final -depending on the position of the part of the sentence it refers to and on the general structure of the main clause.
Women are very shy when they are expressing their emotions.
One day, because the days were so short, he decided to give up algebra and geometry.
Types of adverbial clauses
§ 164. According to their semantics we distinguish adverbial clauses of place, time, manner, comparison, condition, concession, purpose, cause, result.