Everyone makes mistake; that is true, but when people post lengthy stories, containing one or two grammatical errors in nearly every sentence, it is wrong. We are happy to review, but we can not do all the work for you. The author holds the responsibility for his/her writing. If you are not sure about something, look it up. There are a lot of good sites on the net that can help. If you are really serious about writing, then step up and take responsibilty.