~ing 형태가 동명사인지 분사인지 궁금해요

다음 문장에서 ~ing가 동명사인지 분사인지 헷갈립니다.
“He got over his stuttering problem and won a speech contest.”
“By high school, I accepted stuttering as a fact of life.”
“I was good at remembering small things.”
“Positive thinking makes things better.”
각 문장의 ~ing 형태가 어떻게 쓰였는지, accept 뒤에도 동명사가 오는지 궁금합니다.