[lojban-beginners] pu'i?

[Cortesi <dcortesi@mindspring.com>]

Something strange to me in the gismu list around line 952,

> pu'i  pus          can and has                               modal  
aspect: can and has; demonstrated potential...

and just a few lines later,

> punji puj     pu'i put     x1 (agent) puts/places/sets x2 on/at  
surface/locus x3  ...

Is that not contradictory uses of pu'i? How can it be both a rafsi  
and a cmavo?

Thanks,

Dave Cortesi