How is 'could' used in negative sentences to express past inability or hypothetical situations?

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 ... “Can” and “able to” are the same in the present tense: Yes, I can take on this project. Yes, I'm able to take on this project. Apr 21, 2023 ... The English language can be sometimes confusing. One specific topic that may be confusing is knowing the difference between "would" and ... 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 ... Nov 4, 2018 ... Knowing the differences between urgent care centers, emergency departments and walk-in clinics can save time and money, or even be lifesaving. Dec 3, 2018 ... With kidney stones, the pain won't disappear when you move, and changing positions usually makes no difference. ... with a stone can be dangerous. Oct 14, 2012 ... 'Can' essentially indicates ability. Usually it's used for general ability, although nowadays more and more people also use it to indicate permission. Oct 26, 2023 ... In some cases, 'could' functions as the past tense of 'can', but there are some important usage differences between the two. The modal verb 'can ... Feb 22, 2022 ... We show that a bounded drift diffusion model (DDM) can explain both effects with variable parameters: trial-to-trial variability in the starting ... Oct 18, 2012 ... If ping can't find a given name in the DNS, then it returns Could not find host . Alright, so we have an IP address, what now? Now we have to ...