plurals,

[Nawma_taronyu]

ok im having a hard time understanding the plurals.

Before plural marker         After plural marker
px, tx, kx                      p, t, k
p, t/ts, k                      f, s, h
'                                  Ø

i found this with which i am doing some practice myself with and have done as so

[elbow] -> [pxuntil -> MEPUNTIL] [me-p(x)until]

and have tried [spirit] -> [tirea -> (either or) aytirea or ayirea] -> AY-(t)irea (not exactly sure on that)

then theres [eye] -> [nari] not a clue on how to plural that?? help

[Rangtsulfätu]

Actually, it's not that hard. When you pluralize, all you need to do is add me+ (for 2), pxe+ (for 3) or ay+ (for more than 3 or when you don't know how many).

so:
nari (eye) -> menari (2 eyes) -> pxenari (3 eyes) -> aynari (many eyes)
vul (branch) -> mevul (2 branches) ->...

What you found is lenition, that means that the first letter changes when you add the plural prefix.

px -> p
tx -> t
kx -> k
p -> f
t/ts -> s
k -> h
' (glottal stop) -> deleted

so,
tirea (spirit) -> aysirea
pa'li (dire horse) -> ayfa'li
'eveng (child) -> ayeveng

I hope that helps you.

[VathRas]

tirea (spirit) -> aysirea
pa'li (dire horse) -> ayfa'li
'eveng (child) -> ayeveng

One more thing - when you use ay- prefix and lenition occurs, you can drop prefix:

tirea -> sirea (with lenition, but without prefix)
pa'li -> fa'li
'eveng -> eveng

But it's not obligatory.

[Nawma_taronyu]

Swirä Akawng yes that makes perfect sense thank you!!

[Nawma_taronyu]

ok ok i think i got this right.

Me+ (2),    pxe+ (3),    ay+ (3+)

When it has letters px, tx, kx, p, t/ ts, k, ' replace as fallowes

Px ->  p    [ (arm) pxun -> mepun, me+(2)pun (x deleted)

Tx -> t      [ (night) txon -> ayton, ay+(3+) ton

Kx -> k     [ (tail) kxetse -> ayketse, ay+(3+) ketse

P -> f        [ (direhorse) pa'li -> pxefa'li, pxe+(3) fa'li

t/ ts -> s   [ (brother) tsmukan -> aysmukan, ay+(3+) smukan

' (glottal stop) -> deleted  [ (child) 'eveng -> ayeveng, ay+(3+) eveng

[Skxawng]

Everything is correct except for ...

Me+ (2),    pxe+ (3),    ay+ (3+)

Ay+ indicates 4 or more, though that might have been what you were indicating with 3+

[omängum fra'uti]

Ay+ can also indicate an unknown number.

(And possibly in some cases a known number, trying to get an answer from Frommer on one of his examples which uses ayoe where you'd expect moe.)