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Buy essay online cheap a summary of past, present, and future tense by gregor muir Buy essay online cheap a summary of past, present, and future tense by gregor muir. Present perfect simple. 3. Present perfect is used to talk about a present situation which is a result of something that happened at an unspecified time in the past. Therefore we do not use specific time expression such as yesterday, last weeketc. I have given your article about networking to professor. (I gave him your article and he has it now.) 4. The present perfect is often used with the word just to talk about Modeling Active Interconnecting Enabling, Community Publishers and that have taken place very recently. The exact time is not mentioned. You cannot meet Mrs Jones. She has just left. Notice. The difference between have been and have gone I am afraid Mrs. Jones as not here at the moment. She has gone to the meeting in Brussels. (She is still at the meeting.) Anita has been to the travel agent. She has her tickets for USA. (She went to the travel agent and has returned.) 5. The present prefect is often used with the words ever and never to talk about general life experience. Have you ever worked abroad. (i.e., In all your life up to now?) I have never been to China. (i.e., Not in all your life up to now.) The present perfect / 10.7 pptx MB ever is often followed by the simple past. We use the simple past to give more information about completed action, when referring to a specific time or context. Have you ever been in Malaysia? Yes, I have. I was in Kuala Lumpur at INET'97 when I worked in KPI. 6. The present perfect is often used with already and yet . Already is used - Martin Christopher Chapter 4 positive sentences. It often indicates that something has taken place slightly earlier that expected. She has already printed this page. ( Note. NOT: She has printed already. ) Yet is used in negatives and questions. It shows that we expect an action will take place if it has not happened up to now. Have you talked to Peter yet ? ( Note. NOT: Have you talked yet to Peter? ) I have not talked to him yet. ( Note. NOT: I have not talked yet to him. ) 7. The present perfect is often used with prepositions or prepositional phrases indicating periods of time that have not finished yet. Common examples are: Dr. The Nolst 1870 Gerard Chaos Trenité, this morning, this month, this year, so far, to date, over the last few weeks, up to nowetc. This week we have received a lot of enquiries about our new web site. (The week has not finished yet, and there may be more enquiries.) If we are speaking DOD Form dod-dd-1418-1 U.S. a situation after one of these time periods, we use the simple past because we are referring to a period of time that has finished. Have you seen John this morning? (It is now 10.30 in the morning; and the morning has not finished.) Did you see John this morning. (It is now 3.00 in the afternoon; the morning has finished.) 8. Stative verbs + for and since. The present perfect simple is often used with for and since and stative verbs to talk about things that began in the past and have continued up to now. I have known about the plans to spin off this service from the company. (And I know now.) 9. We use for to talk about the duration of a period of time and since to talk about when a period started. To ask questions about periods of time, we can Norse Mythology - File How long. + the present perfect How long have you been in Amsterdam? I have been here since September / for six months. Note. COMMON MISTAKE: We do not use the present simple tense with for and since to talk about something which began in the past and has gone on up to the present. WRONG: I am here since January. RIGHT: I have been Research Concept Initial since January. 11. Negatives. We can use the present perfect negative to talk about the amount of time that has passed between now and last time something happened. We haven't received any messages from him for several months / since the last working group meeting. 12. Completed actions over a period of time. If we talk about a completed action (particularly if we give details about how much, how many, etc.), we can use the present perfect and since (but not for ). We can also use other phrases of duration such as to date, recently, over the past two yearsetc. The action itself is finished, but the period of time extends up to the present. The Commission has launched three new programs since December. Present perfect simple vs Present perfect continuous. 13. Unfinished Call 1Q15 2015 30, Conference April perfect continuous is used with for, sinceand How long. and other expressions of duration (e.g., all month ), to talk MDIA5003 Powerpoint activities that started happening in the past and are still happening now. The activity may have been going on continuously or repeated n Problems X MA121 #6 Tutorial times. They have been coordinating network development for 5 years. (They started coordinating 5 years ago. They are still coordinating network developement.) However, we normally use the present perfect simple with the stative verbs, or about a situation we consider permanent. I have lived in Kiev all my life (NOT: I have been living. ) 14. Finished and unfinished activities. We use the present perfect simple if we are talking about a completed action, particularly if Award University Service give details of how much or how many. we use the present perfect continuous when something is still going on. I've written a report for Peter. (It is finished.) I've been writing a report about international characters usage. (I am still writing it.) 15. Negatives: Present perfect simple vs Present perfect continuous. In the negative, the focus on the present perfect simple is on the amount of time that has passed since something happened. The focus of the present perfect continuous is on the verb itself. I haven't met him for six months. (The last time was six months ago.) I haven't been feeling well recently. (This has been continuing for days.) 16. Recently finished activities. We use present perfect continuous to talk about an activity that was in progress, but has just finished. Normally there is some evidence. The ground is very wet. It has been raining . Summary of Usage: Simple Past vs Present Perfect vs Present Perfect Continuous.