Positive Structure
I/We/You/They +have been +Ving+for/since +O They have been playing cricket for five years(वे पाँच साल से क्रिकेट खेल रहे हैं )
He/She/It/Name +has been +Ving+for/since +O He has been playing cricket since 2005(वो 2005 से क्रिकेट खेल रहा है)
Since – Point of Time (Time , Day , Date , Month, Year etc)
For – Period of Time (5hrs , 10days , 3months , six years etc )
Questions
How long +have+ I/We/You/They+ been +Ving? How long have they been playing cricket ? (वे कब से क्रिकेट खेल रहे हैं?)
How long +has+ he/she/it/Name+ been +Ving? How long has he been playing cricket ? (वो कब से क्रिकेट खेल रहा है?)