Verb Tenses. EG1471 AY 2008/09/10 JChan Forms of Verb Tenses Simple present Present progressive Simple past Past progressive Present perfect Present perfect.

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<ul><li><p>Verb Tenses</p></li><li><p> EG1471 AY 2008/09/10 JChan Forms of Verb TensesSimple presentPresent progressiveSimple pastPast progressivePresent perfectPresent perfect progressivePast perfectPast perfect progressiveFutureFuture progressiveFuture perfectFuture perfect progressive</p></li><li><p> EG1471 AY 2008/09/10 JChan Uses of Verb TensesUse tense shifts or time signals to indicate the tenseUse the correct tense according to the contextUse different verb tenses for different meanings but be consistent </p></li><li><p> EG1471 AY 2008/09/10 JChan Simple Present now</p><p>UseExamplesTo express habitual actions or a condition that is true at any time</p><p>To express general truths</p><p>Everyone reports early for work.The campus is quiet during the vacation.</p><p>The sun sets in the west.</p></li><li><p> EG1471 AY 2008/09/10 JChan Simple Present nowFormation1. Base form of the verb. 2. Add -s or -es for third person singular.</p><p>UseExamplesTo report what is in print e.g. academic writing. </p><p> In her article, Vicky claims that renewable energies are viable alternatives in the long run.</p></li><li><p> EG1471 AY 2008/09/10 JChan Present Progressive</p><p>UseExamplesTo express that an action or activity that is currently happening or is still happening.</p><p>To express that an action is happening at present and is temporary.</p><p>To express that an action is already in progress at a specified point of time in the present. The student is preparing for her final year project.</p><p>The trainees are undergoing training now.</p><p>At 8:30am, most of the employees are working at their desktops.</p></li><li><p> EG1471 AY 2008/09/10 JChan Present ProgressiveFormationam/ is/ are + present participle (-ing). I am writing an academic essay for this module.They are doing some research on nanotechnology.He is preparing the lab set up for the next class.</p></li><li><p> EG1471 AY 2008/09/10 JChanSimple Past Formation:Regular verbs: base form + d/-ednow</p><p>UseExamplesTo indicate that an action took place at a specific time in the past.</p><p>To indicate that an action occurred in the past and is no longer true in the presentThe students did this project last semester.</p><p>He majored in engineering in NUS.</p></li><li><p> EG1471 AY 2008/09/10 JChan Past ProgressivenowFormationwas/ were + present participle (-ing) </p><p>UseExamplesTo express that an activity was in progress at a specific point in time in the past.</p><p>To show that an activity lasted for a period of time in the past (emphasis on the duration).The professor was lecturing when the alarm went off.</p><p>The auditors were checking the accounts while the assets were being tagged.</p></li><li><p> EG1471 AY 2008/09/10 JChan Present Perfectnow</p><p>UseExamplesTo express an action or state that began in the past and continues to the present.</p><p>To show that an event occurred in the past although the exact time is not specified or important.The twins have worked in the same company for four years now.</p><p>They have already completed their calculation.</p></li><li><p> EG1471 AY 2008/09/10 JChan Present PerfectnowFormation:has/ have + past participle </p><p>UseExamplesTo express an action or state has happened in the very recent past.</p><p>To indicate that an event has occurred more than once in the past (specific times are not given or important).The mathematician has just proven a complicated theory.</p><p>The students have approached their tutor several times for assistance.</p></li><li><p> EG1471 AY 2008/09/10 JChan Past PerfectnowFormation:had + past participle </p><p>UseExamplesTo indicate an event that was completed by a definite time or before another action was completed in the past.By the time the rescue team arrived at the scene, the waters had reached 1.5 metres.</p><p>Nobody had dreamt that cloning was possible in the 1900s.</p></li><li><p> EG1471 AY 2008/09/10 JChan Past Perfect ProgressivenowFormation:had + been + present participle (-ing)</p><p>UseExamplesTo stress the duration of an activity that was completed before another action or time in the past.The students had been struggling with the problem for an hour before they found a solution.</p></li><li><p> EG1471 AY 2008/09/10 JChan FuturenowFormation:will + base form (no -s or -es)</p><p>Note: Future time can also be expressed in am/is/are + going to + base form simple progressive or present progressive See Lane and Lange (1999) p. 14 for examples.</p><p>UseExamplesTo express an action, event or state that will occur in the future.They will complete their assignment tonight.</p></li><li><p> EG1471 AY 2008/09/10 JChan Future ProgressivenowFormation:will + be + present participle</p><p>UseExamplesTo express an action that will occur over a duration at some specific point in the future.</p><p>To emphasize the duration of an action in the future.The final year students will be doing their internship overseas for the month of December.</p><p>The professor will be going on sabbatical during the long vacation.</p></li><li><p> EG1471 AY 2008/09/10 JChan Future PerfectnowFormation:will + have + past participle</p><p>UseExamplesTo indicate that an activity will be completed before another event or time in the future.The postgraduate students will have finished their thesis by the end of this semester.</p><p>The experts will have discovered the cause of the explosion in a weeks time.</p></li><li><p> EG1471 AY 2008/09/10 JChan Future Perfect ProgressivenowFormation:will + have + present participle</p><p>UseExamplesTo indicate that an activity has been in progress for a period of time before another event or time in the future.By March next year, the engineers will have been working on the project for three years.</p></li><li><p> EG1471 AY 2008/09/10 JChan SourcesLane, A. and Lange, E. (1999). Writing Clearly: An Editing Guide (2nd ed.). USA: Heinle and Heinle Publishers. Oshima, A. and Hogue, A. (2006). Writing Academic English (4th ed.). New York: Pearson Education, 3-25.Raimes, A. (2006). Grammar Troublespots: A Guide for Student Writers (3rd ed.). New York: Cambridge University Press, 41-45.</p></li></ul>

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