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A subordinating conjunction is a conjunction (a connecting word or phrase) that introduces a dependent clause, joining it to a main clause.. Also called a subordinator.
Most subordinating conjunctions are single words (such as
because, before, when). However, some subordinating conjunctions consist of more than one word (such as
even though, as long as, except that).
Common Subordinating Conjunctions
Cause
as
because
in order that
since
so that
Concession and Comparison
although
as
as though
even though
just as
though
whereas