How might 'could' be used to describe how past systems functioned?

Apr 5, 2017 ... Shall & Should. So “shall” and “should”. “Shall” and “should”. And this also goes with “ought to”, but that's not really used that much at least ... Jun 6, 2024 ... “Can” is used to express present ability or possibility, such as in the sentences “I can swim” and “You can reach me by phone.” On the other ... Apr 3, 2019 ... “Hi, could someone please tell me the difference between the free ... I understand with the latter that you go inside Bodleian Library but can't I ... Dec 29, 2021 ... "The original test could detect the presence of SARS-CoV-2 with very high specificity," – meaning the test does its job very well. A PCR ... Jul 6, 2017 ... Grey Jedi are kind of like good guy light-siders who can use dark side power to defeat evil and they do not have to follow or serve the Jedi Order organization ... Nov 10, 2022 ... We use the verbs can and could to ask for permission to do something. Could is more formal and more polite than can. Think about the different ... You can become an English teacher one day. You never know! Your Turn: Make 3 sentences in which you express possibility in the present using CAN. Expressing ... Jan 30, 2024 ... Users can also create custom policy options to examine ... For options that increase the subminimum wage, the percentage difference between ... Mar 6, 2024 ... “Could you help me?” is more polite and formal while “Can you help me?” is more direct and casual. Difference between CAN and COULD ; 3. Can is used to refer to the present and the future. Could can be used in all the tenses: present, past, and future ; 4. CAN ...