Talk about something started in the past

Talk about something started in the past and continues in the past 

Talk about something started in the past and continues in the present 

Talk about something started in the past and continues in the present and the future

Have/Has + Been 

Have/Has + Been + verb

Have/Has + Been + verb in past 

Have/Has + Been verb ING 

SHE - HE - IT

THEY- WE- YOU- I

SHE - HE - IT

THEY- WE- YOU- I

has eating

has been eating

have eating

have been eating

Have - been stydied

Have - been studying

Have - been study 

been-buying

been-buy

been-bought