Ace the TSA CBT Exam 2026 – Get Ready to Fly Through with Confidence!

Subordinate conjunctions play a critical role in sentence structure by connecting dependent clauses to independent clauses. This connection is essential for creating complex sentences, where the dependent clause cannot stand alone and relies on the independent clause to provide complete meaning. By using subordinate conjunctions, writers can indicate relationships such as time, reason, condition, or contrast between the ideas presented in these clauses, thereby adding depth and complexity to their writing.

For instance, in the sentence "Although it was raining, we went for a walk," the subordinate conjunction "although" introduces the dependent clause "it was raining," which cannot stand alone. It is complemented by the independent clause "we went for a walk," which provides the main action of the sentence. This structure allows for a more nuanced understanding of the situation.

The other options describe functions that do not align with the role of subordinate conjunctions. Connecting independent clauses pertains to coordinating conjunctions, pairing equal elements relates to conjunctions that link similar parts of a sentence, and introducing new ideas does not accurately depict the primary function of subordinate conjunctions, which focus more on establishing relationships between clauses.