http://www.nceltr.mq.edu.au/ielts.asp
Online International English Language Test System - Demo
Printable View
Guide to Grammar and Writing
In loving memory of Dr. Charles Darling - Founder of the Guide to Grammar and Writing
http://grammar.ccc.commnet.edu/grammar/
Common Errors in English by Paul Brians
http://www.wsu.edu/~brians/errors/errors.txt
Article Usage
by John R. Kohl
http://www.rpi.edu/web/writingcenter/esl.html
ENGLISH GRAMMAR:
EXPLANATIONS AND EXERCISES
by Mary Ansell
Second edition, copyright © 2000
http://www.fortunecity.com/bally/durrus ... amtoc.html
CHAPTER 6. THE PAST CONTINUOUS, THE PAST PERFECT AND THE PAST PERFECT CONTINUOUS
http://www.fortunecity.com/bally/durrus ... mch06.html
Google speaks now: http://www.google.com/dictionary?q=envi ... 1&oi=spell
Well, since it has been asked, I suppose you can go to http://www.englishclub.com/esl-forums/index.php if you want. I am actually a Moderator there but I have never advertized them on MR before because my first loyalty is to this site which is geared particularly for Russians who study English, whereas EC is geared for all nationalities to study English so it is less specific than MR. But there are a couple of Russian speakers there, and it is possible sometimes to get a question on grammar answered. However, I think that the guy who answers most of the questions is a bit of a "grammar nazi". I managed to get one guy from there to register an account here at MR but he rarely post here.