Hi.. please check this if this could help.. your question pertains in using grammar. you must be aware about this three the past, present and future tense. this is applicable not only in writing but also orally in speaking english. The present perfect tense links the past and the present. here's my answer. The present perfect tense I / We have been She / He has completed received You / They have had It is used to refer to: -an action or situation which began in the past and is still current. -an action or event which took place in the past, where the exact time of the event is not specified or not clear. -an action or event which has just happened. Examples : 1. He has lived here since he was young. (came many years ago, still here) 2. For the past two years she has worked at the stock exchange. (started two years ago, still there) 3. I have been to London, but I haven't been to New York. (at some/any time in my life) 4. Have you found the book you were looking for? (between the time you started looking and now) 5. She has just arrived. (a short time ago; here she is) 6. We have finished the management report! (a short time ago; here it is) Notes: Every present perfect verb has two parts: 1. have/has always in present tense 2. past participle of the main verb (been, seen, done, found, studied, written, etc.) Please let me know if you understand what i have said.. Thank you, Jaz