Commas with Coordinating Conjunctions 

*if there is a complete sentence on each side of the coordinating conjunction, you must put a comma in front of the conjunction. 

She studied late into the night, for she knew that true understanding required both time and effort.

She analyzed the poet’s use of symbolism, and she crafted a compelling argument about its deeper significance in her essay.

He did not shy away from difficult conversations, nor did he allow emotions to cloud his judgment when making decisions.

 The painting was both simple, but it somehow pulled viewers into a world of emotion and mystery.

He did not shy away from difficult conversations, nor did he allow emotions to cloud his judgment when making decisions.

You can embrace the challenge or remain stagnant, but growth demands a choice.

The book was dense with philosophy, yet its message resonated with even the most casual readers.

He had meticulously planned every detail, so the event unfolded without a single misstep.