Dear all,
as it has been empirically observed that most of Pakistani students do not feel at home when it comes to English language and in our country one can hardly think about getting success without having expertise in this lingua franca..
As we all know that no a perfect structure can be built unless it has a strong foundation, so it is very essential to have a firm grip on the basics of English. I know that you will face some problems in learning but i give you my word that there is no royal road to that. i recommend you a book that is purposely written for students who are yet to learn the basics and i found it the best book of its nature so i strongly recommend to go through that book before you go for A.J Thomson or like book which undoubtedly has no parallel..

Verbs & Tenses by Khalid Mehmood
this can be purchased from Ilmi Book House Lahore at nominal price of RS 180

(This is written with good intent to help the aspirants overcome a difficulty that is proving a hindrance in their CSS preparation)