"Might" = there is a chance of something happening but its more 50/50 "Could" = something can happen if others are willing to. Might Examples: 1. "I might be able to visit you this weekend, if I am able to get time off work." 2. "According to the weather app, It might rain today." Could examples: 1. "Could you pass me my phone?" 2. "I could go out tonight, but I'm still not sure if I want to or not." 3. "We could go see a movie, If you're up for it." I hope this helps! Feel free to ask me if you need any clarification!

Generally the difference is 'might' means 'it is possible something will happen', and 'could' means 'is capable'. That garage could fix your car. = They have the equipment, and the expertise. They might not be able to, if they are too busy. I might go out with her. = It's possible. I'm thinking about it. There is a big grey area in between though. I could also say 'I could go out with her'. It also means it's possible, and I am obviously able to too.

Might- •possessing great and impressive power or strength, especially on account of size. "three mighty industrial countries" "a mighty warrior" "mighty industrial countries" •(of an action) performed with or requiring great strength. "a mighty blow" •very large. "she gave a mighty hiccup" "mighty oak trees" •Will or wont do something "I might do this for you but maybe not" •Could- used to indicate possibility. "they could be right" •used in making polite requests. "could I use the phone?"