Dear Sir/Madam
I have excellent grip on mechanics and rules of English Grammar. I have completed several projects on freelancer. Due to stunning quality of work that I always delivered on previous projects, all my previous employers have awarded me with good ratings. I can complete your project of proof reading in less than 2 hours. So, at my bid rate, the whole project won't cost you more than 550 PHP in all. I meticulously review documents so that even minute errors can be corrected. I look forward discussing more details with you on message.
Thanks