<p>what type of errors are on the sat? mechanical, punctuation, tense>...</p>
<p>There are several types of errors that frequently show up on the SAT. Just purchase a test book and you'll familiarize with every one of these. Good luck ^^
Btw, I recommend using Mc Grawhills's "OLD" SATII Writing for every single grammar rule. Have fun :D</p>
<p>parallelism</p>