Conjunctions

Coordinating conjunctions join words, phrases, or independent clauses that are equal in importance. The most common coordinating conjunctions are FANBOYS: for, and, nor, but, or, yet, so. • Use and to add ideas, but to show contrast, or to present a choice. Yet often means “but,” while so shows result. For can mean “because,” and nor is used after a negative statement. • When a coordinating conjunction joins two independent clauses, use a comma before the conjunction. Example: I wanted to go, but I was too tired. • When joining items in a list, commas are usually used between items, and the conjunction comes before the last item. In many styles, the final comma before and/or is optional, but it can improve clarity. • Keep sentence parts parallel after a coordinating conjunction. This means matching grammatical forms: noun with noun, verb phrase with verb phrase, clause with clause. Parallel structure is especially important in longer sentences. Compare: She likes singing, dancing, and to paint. Better: She likes singing, dancing, and painting. Matching forms makes writing smoother and clearer. Also avoid commas alone joining independent clauses; a comma splice is incorrect unless another joining method is used.

Subordinating conjunctions connect a dependent clause to an independent clause. They show relationships such as time, reason, condition, contrast, and purpose. Common subordinating conjunctions include because, although, since, if, when, while, unless, before, after, and so that. • A dependent clause cannot stand alone as a complete sentence. Because it was raining is incomplete by itself. • When the dependent clause comes first, use a comma after it: Although the movie was long, we enjoyed it. • When the independent clause comes first, the comma is usually not needed: We enjoyed it although the movie was long. • Some subordinating conjunctions can create confusing meaning if used carelessly. Since may mean “because” or refer to time, so context matters. Correlative conjunctions work in pairs to connect equal parts of a sentence. Common pairs include either...or, neither...nor, both...and, not only...but also, and whether...or. These pairs must be used together, and the sentence parts should remain parallel. For example, both the structure and the meaning should match: She is both talented and hardworking. Intermediate learners should also watch subject-verb agreement with neither...nor and either...or, especially when the closer subject is singular or plural.

Conjunctive adverbs connect two independent clauses while showing a relationship such as contrast, result, addition, or sequence. Common conjunctive adverbs include however, therefore, moreover, nevertheless, consequently, meanwhile, and otherwise. • When a conjunctive adverb joins two independent clauses, use a semicolon before it and usually a comma after it: The plan seemed risky; however, it worked. • If the conjunctive adverb appears at the start of a sentence, follow it with a comma: However, the plan worked. • Conjunctive adverbs are not the same as coordinating conjunctions. You cannot usually join two full clauses with just a comma and a conjunctive adverb. • Use punctuation carefully with subordinating conjunctions too. A comma is often needed when the dependent clause comes first, but not always when it comes second. Different conjunctions create different punctuation patterns. Coordinating conjunctions often use a comma before the conjunction when joining independent clauses. Subordinating conjunctions may use a comma when the dependent clause comes first. Conjunctive adverbs typically require a semicolon or a period because they are not true conjunctions in the same way FANBOYS are. Learning these punctuation patterns helps avoid comma splices and run-on sentences while making writing more precise and polished.