How do these tenses interact with time clauses introduced by "since" or "for"?

Past versus Present Perfect. 51. Past versus Past Perfect. 54 ... most of the verbs are in the Present Perfect (and why the Present Simple is used for verb. 1.6 Distinguish between information provided by ... 6-8.6 Use technology, including the Internet, to produce and publish writing and present the relationships ... In information theory, the entropy of a random variable quantifies the average level of uncertainty or information associated with the variable's potential ... Feb 26, 2018 ... That something else could have been described in a previous sentence (and would probably be described in the past simple or continuous). In ... Thank you for fantastic info I was in search of this information for my mission. ... difference between the Present Perfect Simple & Present Perfect Continuous.. Distinguish between information provided by ... Note: Some informational books for children on mathematics and science present concepts in the form of. When people with pathological narcissism or NPD seek treatment they can present in many different ways. Some match the typical expectation of a narcissistic ... Present (simple). I send; you send; he sends; we send; you send; they send. Present progressive / continuous. I am sending; you are sending; he is sending ... modelling continuous time systems are discussed and the procedure is illustrated with a simple example. IN A RECENT PAPER, Turnovsky and Burmeister [13] ( ... 5R3: In literary texts, compare and contrast two or more characters, settings, and events, drawing on specific details in the text. In informational texts, ...