i.i.kuse: a toy conlang with postfix notation

I find constructed languages like Lojban and Ithkuil terribly interesting, but they are a bit too complex for me to actually pick up. So, being a programmer and a fan of FORTH, I decided to make a toy constructed language combining postfix notation and predicate logic.

The grammar here is very simple. There are two types of words: verbs and non-verbs. Verbs always start with a K, and non-verbs never start with a K. Verbs in general describe a relationship between the last non-verb said before the verb and the rest of the non-verbs. Verbs are of the form:

Argument count prefix	ka	ku	ko	ki	ke
	(1)	(2)	(3)	(4)	(5)
root (ends with a vowel)
suffix (optional)	n s k past present future

Non-verbs include some pronouns:

• i - it or itself
• me - I/me/myself
• vi - he/she/herself/himself

Some basic verb roots:

• a - belongs to the set [last arg]
• la - has attribute [last arg]
• lo - group args together (in case something needs more than five args)
  
• di - constitutes meaning of [last arg] (for defining)
• sa - goes to [last arg]
• so - comes from [last arg] or is caused by [last arg]
• si - sees [last arg]
• se - says [last arg]
• du - makes [last arg]

Pronunciation guide:

a	o in sOck
i	ee in sEE
o	ow in lOW
u	ew in dEW
e	ay in sAY
l	l in Lamb
d	d in Dog
s	s in Saw
m	m in Man
k	k in Kick
v	v in Voice

Note: doubled vowels and doubled consonants should be separated by a glottal stop, designated by a period.

Example sentences:

• me i kusin - I saw it
• vi i kuduk - s/he will make it
• me vi i kudun kusis - I see that s/he made it
• vi me vi i kudun kusis vi i kudun kudis kuses - s/he says that the fact that I saw that s/he made it means that s/he made it
• me vi i.i.kuse kolos kases kalas koas - s/he and I belong to the set of i.i.kuse speakers.
• me vi i.i.kuse kolos kasen kalas koas - s/he and I belong to the set of former i.i.kuse speakers.
• me vi i.i.kuse kolos kases kalas koan - s/he and I used to belong to the set of i.i.kuse speakers.