How do these tenses function when talking about technological advancements?

modelling continuous time systems are discussed and the procedure is illustrated with a simple example. IN A RECENT PAPER, Turnovsky and Burmeister [13] ( ... The choice of using present perfect simple or progressive is often a matter of perspective and/or emphasis: to describe an openended event in contrast to an ... ... informational texts to present, describe, and explain ideas and information, using ... simple present for type, and discipline (e.g., the present perfect. Present perfect. Others have used similar approaches. Reporting of your own or ... When writing an APA Style paper, present ideas in a clear and straightforward ... Jun 15, 2022 ... PAST SIMPLE or PRESENT PERFECT? | Let's learn and compare! - English Tenses. Arnel's Everyday English•1M views · 13:31. Go to channel ... Feb 15, 2021 ... This document provides information about the present perfect and past simple tenses in English. It discusses the differences between these ... Talking about experiences using Present Perfect and Past Simple. General Grammar. In the first lesson, students learn the differences between the two tenses and ... Read more about choosing between the present perfect and the simple past tenses. Actions started in the past and continuing in the present. They haven't lived ... What are the 12 different English tenses? The twelve tenses in English are as follows: Simple Present Tense; Present Continuous Tense; Present Perfect Tense ... ... continuous from the present back many thousands of years. The oldest ... difference between Antarctic and Greenland ice core temperature proxy data. We ...