While you remember, a combination is a connective. It joins terms or sets of terms. Coordinate conjunctions are one kind that is popular of. a coordinate combination joins two terms, two expressions, or two clauses of equal ranking. As an example, a conjunction that is coordinate join two topics in a mixture topic or two complete sentences in a substance phrase. Common conjunctions that are coordinate and, or, but, for, yet, and then.
a wish and a hope ?(and joins two nouns)
within the storage or behind the doghouse ?(or joins two prepositional expressions)