Coordinating Conjunctions

Coordinating conjunctions are essential to constructing coordinate structures. A coordinating conjunction connects like structures, including words (nouns, pronouns, verbs, adjectives, adverbs, prepositions, and conjunctions), phrases, and clauses.

Coordinating conjunctions include the following:

and, but, or, yet, nor, for, so

Each of the following sentences uses a coordinating conjunction correctly:

I like ham, cheese, olives, and pepperoni on my pizza.
To get to my house, exit the freeway, turn left onto Jefferson Street, and look for the first red house on the left.
I enjoy reading poetry, but I do not like writing it.

Which of the following sentences uses a coordinating conjunction correctly? I left the library, stepped into the cold night air, and began the long walk home. I left the library, stepped into the cold night air, began the long walk home.