할 Right! structure to say when one can do something : 나는 한국어를 할 수 있다. also It can be show another meaning or Grammar For example : 나는 샤워를 할 것이다. ( I am going to shower ) no long time, You will be something soon !! ^^ and 하다 basic V and when you ask something to someone ,you can say !! 할 수 있어요?