How does the present perfect simple often imply a lasting change or effect?

Feb 5, 2018 ... What is the problem we wish to solve when we try to construct a rational economic order? On certain familiar assumptions the answer is simple ... Feb 6, 2020 ... CDSSs today are primarily used at the point-of-care, for the clinician to combine their knowledge with information or suggestions provided by ... ... is continuous or progressing in the present. It is formed by adding the ... The simple present tense is formed by using the base form of the verb. It ... Jun 16, 2017 ... assess the difference between present and desired OE conditions toward achieving the. Figure VI-5. Information Collection Considerations. Histogram: A type of bar chart that split a continuous measure into different bins to help analyze the distribution. ... Humans have been trying to present data ... Oct 15, 2024 ... The Present Perfect Continuous tense is vital for describing actions that began in the past and are still continuing, or have recently ... In information theory, the entropy of a random variable quantifies the average level of uncertainty or information associated with the variable's potential ... 1The present perfect continuous is sometimes called the present perfect progressive. ... Compare the present perfect and the simple past. Summary of Lesson 9. Sep 10, 2020 ... Simple Past and Past Continuous. Compare these sentences. What are the verbs? How is the past tense formed in each sentence? ... continuous from the present back many thousands of years. The oldest ... difference between Antarctic and Greenland ice core temperature proxy data. We ...