Объясните, пожалуйста , вкратце Present Perfect Continuous) Заранее спасибо

Время Present Perfect Continuous указывает на действие, которое началось в прошлом, продолжалось в течение некоторого времени и либо закончилось непосредственно перед разговором или все еще продолжается в момент разговора. Образование Present Perfect ContinuousУтвердительные предложения:I have been playing We have been playing You have been playing You have been playing He / she / it has been playing They have been playingВопросительные предложения:Have I been playing?Have we been playing?Have you been playing?Have you been playing?Has he / she / it been playing?Have they been playing?Отрицательные предложения:I have not been playing We have not been playing You have not been playing You have not been playing He / she / it has not been playing They have not been playing