Missing word errors make this list because we are too often in a hurry when we edit. Our brains are great. We can read right through sentences and put in the words that need to be there even if words are missing. Of course, others might quickly notice the error, so we have to find ways to slow ourselves down and edit carefully. You don’t want to write a sentence like the following example that is missing a small word with big meaning:
I enjoy walking alone in the woods at night because I never what I will meet while I am out there in the dark.
Did you see the error? Look at the revised sentence below:
I enjoy walking alone in the woods at night because I never know what I will meet while I am out there in the dark.