done", ends in "-inta", as "vidinta", having seen, "irinta", gone,
having gone:

La falintaj folioj estas brunaj. The fallen leaves are brown.
Kiu estas la viro salutinta nin?
Who is the man having greeted (who greeted) us?
Oni forgesas la foririntajn personojn.
One forgets the departed persons (the persons who have gone away).


ADVERB DERIVATION FROM PREPOSITIONS.

120. Adverbs may be derived from prepositions whose sense permits, by
use of the adverb ending "-e":

Antauxe li studis la geometrion, previously he studied geometry.
Poste li studis la germanan, afterwards he studied German.
Li marsxis antauxe, ne malantauxe, he walked in front, not behind.
Dume la viroj staris cxirkauxe, meanwhile the men stood roundabout.
Ili venis kune kaj sidis apude, they came together and sat near by.


ADVERBS EXPRESSING DIRECTION OF MOTION.

121. An adverb expressing place or direction is given the ending "-n"
when used with a verb expressing motion toward that place or direction
(69, 118, etc.):

Cxu li rajdis norden aux suden? Did he ride north or south(ward)?
Ni kuris antauxen, ne malantauxen, we ran forward, not back.