Hi and welcome ,
Originally Posted by dilumt227
First of all, there are female members/teachers in this forum, so do not start the posts with "Sir", a simple "Hi" or "hello" is usually enough.
As for your grammar: at the top of the page, there are different buttons you can click. I suggest you start by clicking on "Students" and look at the grammar questions, quizzes, etc. As you read them, if you have doubts, you can post them here for reply.
But be aware that sometimes the answer will not be quick, so please be patient.
Last edited by charliedeut; 20-Jul-2012 at 12:44.
Reason: Added PS
Please be aware that I'm neither a native English speaker nor a teacher.