http://www.englishforums.com/English/FrequentlyAskedEnglishQuestions-AnswersArchivedPosts/Forum31.htmArea designed to store the most commonly asked questions and their accepted answers.enXMOD (Build: 3615.39139)http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htm#50616Wed, 25 Mar 2009 07:31:18 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:50616meg25890http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htm#50616http://www.englishforums.com/English/comments31-50616.xmlDear Jim, Your posts are always very useful and informative. I knew the difference between Simple past and Present Perfect. But your bread-example made it very clear to me. You are really a great source of knowledge for me. I always learn many new things from your posts. Thanks a lot! Regards.http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htm#49164Wed, 25 Feb 2009 07:31:18 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:49164CalifJim1http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htm#49164http://www.englishforums.com/English/comments31-49164.xmlThere is more than one difference between the simple past and the present perfect. The simplest difference is the grammatical difference that the simple past can be used with expressions which signify a definite, particular time in the past. I wrote a letter yesterday. I wrote a letter at 7 o'clock. I wrote a letter last Monday. I wrote a letter several weeks ago. The present perfect cannot be used with such expressions. (After all, it IS a "present" tense!) I have written a letter yesterday. (wrong!) I have written a letter at 7 o'clock. (wrong!) I have written a letter last Monday. (wrong!) I have written a letter several weeks ago. (wrong!) Being a "present" tense, the present perfect can be used with "now": I...http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htmMon, 25 May 2009 06:31:18 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:49154hanuman_20002http://www.englishforums.com/English/SimplePastPresentPerfect/krbh/post.htmhttp://www.englishforums.com/English/comments31-49154.xmlSir, 1. I wrote a letter. 2. I have written a letter. What is difference between these two sentences? I know that 1) is in simple past tesnse and 2) is persent perfect. But, both as I think suggest that work has completed in past. Please explain a bit to clear the usage of simple past and Persent perfect tense.