I faced the same problem. However, I found a way out.
The trick here is to understand the basics of english and construction of sentences. I use Spidey's notes for the basics, kaplan verbal workbook, OG 11 and SC 1000 for practice. Make sure if u do a mistake, never repeat the same again.
Make a note of the doubts and post it here, look for forums that discussed the problem before.

The next thing you know, you are an SC Expert!

sherin wrote:Hi All
I started my gmat prep last week.Joined an institute .The started with the SC.They told some rules. But it looks like that even the SC's they have given cannot be solved using the rules they gave.Can someone tell me how I should ideally prepare for SC.I hear most people saying SC's are the easiest in verbal.But I am in utter confusion as to what is to be done with SC.Please help

Thanks in advance
Sherin

A Manhattan Sentence correction guide and BTG practice qtns are strongly recommended