I think it has been establish that the community can coin new content phrases using existing content words. But I would guess that conversion of content words to function words would be fundamentally changing the language because a new function word means new grammar rules. I know some function words can be used as content words, and expansion and evolution of the language in that direction I presume is okay.
I tried to split the 123 current words into content and function.. I get more or less 25 function words. Given the goal is come up the list of valid words words that can appear a phrase marker, conjunction, preposition, auxiliary verb pronoun etc---any miscategorizations?
a - content
akesi- content
ala
alasa - content
ale / ali
anpa
ante
anu
awen - content
e
en
esun - content
ijo - content
ike - content
ilo - content
insa - content
jaki - content
jan - content
jelo - content
jo
kala - content
kalama - content
kama
kasi - content
ken
kepeken
kili - content
kin
kipisi - content
kiwen - content
ko - content
kon - content
kule - content
kulupu - content
kute - content
la
lape - content
laso - content
lawa - content
len - content
lete - content
li
lili - content
linja - content
lipu - content
loje - content
lon
luka - content
lukin - content
lupa - content
ma - content
mama - content
mani - content
meli - content
mi
mije - content
moku - content
moli - content
monsi
mu - content
mun - content
musi - content
mute - content
namako - content
nanpa - content
nasa - content
nasin - content
nena - content
ni
nimi - content
o
oko - content
olin - content
ona
open - content
pakala - content
pali - content
palisa - content
pan - content
pana - content
pi
pilin - content
pimeja - content
pini - content
pipi - content
poka
poki - content
pona - content
pu... um what is pu?
sama - content (reflexive marker?)
seli - content
selo - content
seme
sewi - content
sijelo - content
sike - content
sin - content
sina
sinpin - content
sitelen - content
sona - content
soweli - content
suli - content
suno - content
supa - content
suwi - content
tan
taso
tawa
telo - content
tenpo - content
toki - content
tomo - content
tu - content
unpa - content
uta - content
utala - content
walo - content
wan - content
waso - content
wawa - content
weka - content
wile - content