Can 'can' be used to express a general understanding of psychological principles?

'Can' is used to represent present condition of the subject, but could is used to reflect a past ability, as could is nothing but a past form of can. Oct 14, 2023 ... Can is for present or future. I can ride a bike. Can you give me a ride later? Could is for past. I could ride a bike when I was 5 years old. Feb 13, 2013 ... "Can" is a rude way to ask, it's like giving a command. "Could" is a polite way to ask, it's like a requesting. This page will help you learn more about life expectancy, how it impacts you and your neighborhood, and what you can do about it. ... Make a difference in the ... Just remember that could is used to talk about something that can happen, would is used to talk about something that will happen in an imagined situation, and ... CAN/COULD are modal auxiliary verbs. We use CAN to: a) talk about possibility and ability b) make requests c) ask for or give permission. We use COULD to: ... Can or could? That is the question of this Grammar 101 article where we explain the difference between these two commonly misused words. Read on here. Sep 3, 2021 ... “It can be hard to tell the difference between food poisoning and a stomach virus,” she admits. “If you've just been to an event where food ... Nov 20, 2024 ... “Can” is used for expressing ability, permission, or possibility in the present tense. “Could” is often the past tense of “can” and is used for the same ... Both can and could (and other modals, especially may and might) are used to express various kinds of possibility, ability, permission and potential.