Onomatopoeia is defined as a word, which imitates the natural sounds of a thing.nomatopoeia is defined as a word, which imitates the natural sounds of a thing.
With age they cook less and less well until they simply will not soften, no matter how long you soak them and how long you cook them. Soaking: Whole mung beans need to be soaked at least 4 hours and preferably 5. You'll need 2-1/4 cups of soaking water for every cup of beans.
The cooking time of green beans can vary quite a bit. It will be at least 10-15 min, sometimes it can go up to 30 minutes. I advise you to cook them for about 10 minutes and taste one. Do so every two-three minutes until you have them a tiny bit too hard for your taste. After that, you will fry the beans (for example with oil/butter and onion) which will make them a bit softer, as you like them.