2.1.1. 규칙 동사

  (a) 원형 뒤에 -ed 를 붙인다.

          talk          말하다                  talked          talked  

          open         열다                    opened          opened  

         end          끝나다                  ended          ended  

         want          원하다                  wanted          wanted 

  (b) -e 로 끝나면 -e를 빼고 ed를 붙인다.

          love         사랑하다                loved          loved                  

          die           죽다                    died           died   

          change       변경하다                changed        changed 

          hope          희망하다                hoped          hoped