FANBOYS is a memory device used to help students remember D. coordinating conjunctions. F stands for for, A is and, N is nor, B is but, O is or, Y is yet, and S is so. Coordinating conjunctions connect sentences or part of sentences that are of the same importance and value. Subordinating conjunctions connect subordinate clauses that depend on independent ones. Conjunctive conjunctions do not exist. And correlative conjunctions are either...or, neither...nor, not only...but, and they always come in these pairs.