if you can find esential English Grammar _Raymond Murphy. please read. it's a good book.

Don't sweat it!Grammar is just a rule to correct your oral and written expressions,so it'd be important sometimes.But you don't need to worry about it when you have a good sense of language(语感),take me for an example,I don't think my English is excellent,but I can still communicate with native people and have no difficulty.And my good sense of language can account for that,as a matter of fact,my grammar really sucks,I even don't know what is subject,what is object.The conceptions of grammar really give me headache,I tried many times to learn grammar,but I failed.But my sense of English can make up for it. 欢迎交个朋友，我的QQ是1191860459

Don't walked out! You're smart, BELIEVE! *-*

you can find , Language Partners/Speakers:-http://www.italki.com/partners/1--English--200-0--0-0.htm Language Teachers :- http://www.italki.com/teachers/1-3-English---0-999999-0-0-1.htm Language Courses :-http://www.italki.com/Courses/1-English-0--0-999999-0-0-1-0.htm Language Products:- http://www.italki.com/marketplace/products.htm

HEYY U WANNA FIND SOME ENGLISH GRAMMER BOOK AND LEARN TENSE