10 Common Parts of Speech Mistakes and How to Fix Them Writing & Grammar 10 Common Parts of Speech Mistakes and How to Fix Them Published June 16, 2026 • 15 Minute Read Ever felt like your writing was perfectly fine, only to have an editor or an automated tool flag an awkward phrase? Don't worry—it happens to everyone. Most structural errors don't happen randomly; they occur because we mismatch the core components of our language: the Parts of Speech . When a noun acts like a verb, or an adjective accidentally assumes an adverb's role, your writing loses its crispness. Below is a comprehensive look at the ten most frequent parts of speech mistakes and how to identify and resolve them instantly. 1. Adjective vs. Adverb Confusion (The "Drive Good" Dilemma) This i...