Consult Jahangir Publishers' 'Arabic Made Easy' 2 books written by Dr. Inam-ul-Haq Ghazi.
You may also consult the newly published book, titled "Mahajr-e Arabi" published by Jahangir Publishers. The author is Hafiz Arshad Chadhar.

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"But screw your courage to the sticking place,
And we'll not fail." _Shakespeare, 'Macbeth')