Based on the Vîr, every vowel has a distinct relationship with each of the other four:
1 = the "stem vowel", i.e. the one being altered, generally the final vowel of a word.
The dotted lines represent
temporal relationships:
2 = past temporal
3 = future temporal
The solid lines are additional relationships.
4 = the "Cross"
5 = the "Mirror"
Now let's take an example verb:
zat, "to stab." "I" will be the understood subject.
The dictionary form
zat is an
aorist tense, functioning as both infinitive and simple present:
zat "I stab"
Simple past shifts the stem vowel (a in this case) along the vowel's past temporal relationship. For a, that is o:
zot "I stabbed"
Simple future shifts the stem vowel along the vowel's future temporal relationship. For a, that is e:
zet "I will stab"
To show
perfection, prefix the stem vowel's cross relationship. For a, that is u:
uzot "I have stabbed"
uzet "I will have stabbed"
To show
pluperfection, prefix the stem vowel's mirror relationship. For a, that is i:
izot "I had stabbed"
izet "I will have had stabbed"
(Note that perfection/pluperfection are only available to the past and future tenses)
To show
definity (
progression in English), lengthen the final vowel:
zât "I am stabbing"
zôt "I was stabbing"
zêt "I will be stabbing"
etc.
Obur izêt måmgoz "The hero will have had been stabbing the dragon"
I realize it seems very complicated, but I actually think it's easier than endings: it follows a logical pattern, whereas endings must be memorized. It also cuts down syllable count, which I think is good, especially in a consonant-heavy language like Dwarvish: it helps with the flow. Ultimately the system works much more like English (also note the lack of person or gender inflections)
That said, it would require a strong knowledge of Dwarvish words, since it messes with the basic structure of them; so I though it might be wise to relegate it to a "high" or "court Dwarvish," as distinct from a more forum-friendly "colloquial Dwarvish." That way, only those
really interested in the language would have to deal with these funky ablauts, and everyone else could use more familiar endings.