Real Cause.—As, because, for, since, and whereas are conjunctions proper.
Evidence.—Because, for, and since are conjunctions proper.
Purpose.—In order that, lest (= that not), that, and so that are conjunctions proper.
Condition.—Except, if, in case that, on condition that, provided, provided that, and unless are conjunctions proper.
Concession.—Although, if (= even if), notwithstanding, though, and whether are conjunctions proper. However is a conjunctive adverb. Whatever, whichever, and whoever are relative pronouns used indefinitely.
CONNECTIVES OF NOUN CLAUSES.
If, lest, that, and whether [Footnote: Etymologically, whether is restricted to two; but it has burst the bonds of its etymology and is very freely used with three or more.
The repetition of whether, like the use of it with three or more things, has been condemned, but usage allows us to repeat it.
Whether or no is also allowed.] are conjunctions proper. What, which, and who are pronouns introducing questions; and how, when, whence, where, and why are conjunctive adverbs introducing questions.
+Direction+.—Study the lists above, and point out all the connectives in Lessons 80 and 81, telling which are relative pronouns, which are conjunctions proper, and which are conjunctive adverbs.