6a5ff10a___ars_grammatica____Vicipaedia__forma_perfectica_progressiva
he runs he is running he has run [significatio verbi] "currere" [forma perfectica progressiva] 
he has been running
I h a v e b e e n w o r k i n g
y o u h a v e b e e n s e e i n g
h e h a s b e e n r u n n i n g
w e h a v e b e e n t r y i n g
y ' a l l h a d b e e n c l i m b i n g
t h e y h a d b e e n g o i n g
Aspectus (ars grammatica) - Vicipaedia
forma perfectica progressiva