Grammar hasn't been on the SAT for long, it is already causing problems for students. You don't need to have perfect grammar, but the SAT does want you to know some basic rules. Check out these short videos on select writing and grammar topics.
You don't need to know every grammar rule you learned in 10th grade, but you do need to know the basics. Find out the most common grammar rules tested and how to approach the writing section with this mini-lesson. | Video