It would be great if we could blame writing mistakes on ghosts and goblins, but the truth is we all make them. Still, Business Writing That Counts! can help writers cut down on scary mistakes like the ones below. 1. Incorrect Verb Visions Incorrect verb forms are among the top writing and speaking mistakes. For example, using "we was" instead of "we were" or "I done" instead of "I did" makes for a poor image. This might seem too simple to mess up, but it can—and does—happen.