Question

what r the basics to learn good english at home

Answer 1

Grammar, speech, structure basic literature Try Rosetta stone if you want to learn it or if you know English then you can get a literature book from amazon
Here is a self teaching grammar book you should learn better English from this :D
http://www.amazon.com/English-Grammar-Demystified-Teaching-Guide/dp/0071600809/ref=sr_1_1?ie=UTF8&qid=1350257954&sr=8-1&keywords=learn+grammar

Answer 2

or this one :D http://www.amazon.com/Grammar-Punctuation-Made-Easy-ebook/dp/B003UHVUG8/ref=sr_1_5?ie=UTF8&qid=1350258015&sr=8-5&keywords=learn+grammar

Answer 3

or this one http://www.amazon.com/Practice-Makes-Perfect-English-Learners/dp/0071441328/ref=sr_1_15?ie=UTF8&qid=1350258015&sr=8-15&keywords=learn+grammar

Answer 4

the use of tense and how to use verbs in their correct format. Also look up parallel structure