To make it even more irregular, you've basically got three options: suppletion, sound change, or analogy. The first uses different morphemes in some forms; the second replaces agglutinative suffixed with fusion; and the third complicates one paradigm by introducing bits from another. [and remember: irregularit
For now, let's keep things simple, and just use a little bit of simple sound change.
1. stress goes on rightmost heavy syllable, or else on rightmost syllable if none are heavy
2. u>y, o>u
3. unstressed vowels umlaut (here, u>o before a, a>e before i, and y>i before i), while stressed vowels break (here, u>ua before a, and a/y > ai/yi before i)
4. Palatalisation before e and i
5. stops assimilate to following fricatives
6. unstressed medial vowels drop, where this does not create a cluster of more than two consonants
7. unstressed final verbs reduce to schwa
8. stressed moves to first syllable
9. stressed vowels before single consonants lengthen
10. geminates simplify; /tS/ and /ts/ reduce to the fricatives
11. palatalised /k/ > /ts/, palatalised /s/ > /S/; kS > tS, but tsS > ts
12. ai, yi > ej, ij; ua > wa
13. coda /j/ strengthens to /k/
14. y > i
15. schwa > i
16. final consonants drop
17. Cw > Cr
And just a bit of analogy, to disambiguate: the noncontrol forms borrow final -a in the present singular 2nd from the control forms, to disambiguate 1st and 2nd; the nonpast control 3rd singular borrows the long vowel from the noncontrol to disambiguate from the plural; but in the noncontrol past the opposite happens (the noncontrol borrows the long vowel from the singular); and the long vowel spreads from the control past 3rd to the 2nd (or, possibly from the present 2nd).
Oh, and then they realise that the plural ends in -Si, so spread that to all forms in the noncontrol paradigm. /tu:kiSi/ and /tukiSi/ are then very similar, so marge as the long vowel form.
And finally, 18. long vowels break
Code: Select all
Control Noncontrol Nonpast SG1 tauke | tuki SG2 tauka | tuka SG3 traiki | twaki PL1 toseSi | twaSi PL2 taukeSi | twakiSi PL3 traki | twakiSi -------------------------------------------- Past SG1 toke | twaki SG2 tauka | twaki SG3 tauka | twaki PL1 tosi | tusiSi PL2 tokeSi | twakiSi PL3 tauka | twakiSi