COMPLEX SENTENCE—ADVERB CLAUSE.
+Introductory Hints+.—He arrived late. You have learned that you can expand the adverb late into a phrase, and say, He arrived at midnight. You are now to learn that you can expand it into a clause of +Time+, and say, He arrived when the clock struck twelve.
He stood where I am. The clause introduced by where expresses +Place+, and is equivalent to the adverb here or to the phrase in this place.
This exercise is as profitable as it is pleasant. The clause introduced by as … as modifies profitable, telling the +Degree+ of the quality expressed by it.
A clause that does the work of an adverb is an +Adverb Clause+.
Analysis.
The +adverb clause+ may express +time+.
1. When pleasure calls, we listen.
we | listen
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| \
`When
`
pleasure | \ calls
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+Explanation+.—When modifies both listen and calls, denoting that the two acts take place at the same time. It also connects pleasure calls, as an adverb modifier, to listen. The offices of the conjunctive adverb when may be better understood by expanding it into two phrases thus: We listen at the time at which pleasure calls. At the time modifies listen, at which modifies calls, and which connects.