The comitative suffix is pronounced -kā . It does not vary according to vowel harmony e.g. ope̮ze̮-n kan' > ope̮zē̮kā ('with a horse' singular comitative ), tüttäre-n kan' > tüttärēkā ('with a daughter' singular comitative ), tüttäre-in kan' > tüttärīkā ('with daughters' plural comitative )
The final vowel of comitative suffixes may be shortened or even omitted depending in it's position in a sentence e.g. tanttsi m o r o z o v ā poigāk (" She danced with Morozova's son. " Mati dialect), te̮in-te̮izē̮G (" with each-others " Kõrvõttula dialect), menim̄ izä̀kà nīttämǟ (" We went to mow with our father. "), tappe̮li karùkà (" He fought against a bear. " Jõgõperä dialect).
Unlike in most of the other cases in comitative there is no agreement between adjectives and nouns in case, but a noun follows an adjective in genitive e.g. kaĺaska kaunī rattaikā (' a coach with red wheels ').
There may be poetic exceptions e.g. mesizīkā mēlīkā (' with honeyed minds ').
time - e.g. miä e̮лe̮n üö-päivɛ̆ä̀kā karjuššin̄ (' I'm tending a cattle the whole day and night long .' Lempola dialect)
being together with somebody - e.g. eli izǟkā ja emǟkā (' She lived with her father and mother .'), nämäd ̮ menivät ̮ poigākā (' They went with their son .' Lempola dialect), tšenēkā siä isud ̮ rinnā ? (' Whom are you sitting next to? '), jutte̮li tüttärikkoikā (' He was speaking with girls. '), e̮lin lehmīkā karjaza (' I was tending cows. ')
being equipped with something - e.g. verēkā varvaz (' bleeding toe'), e̮unappū e̮une̮ikā (' an appletree with apples '), seittsemē paikākā (' with seven patches '), kaĺaska kaunī rattaikā (' a coach with red wheels '), mikä pǟkā on? (' What's wrong with your head? '), tuli vaĺeŋkoikā rihēsē (' He came in (to a chamber) felt boots on. ')
a mean to do something with (Comitative is used in this sence more often than adessive .) - e.g. taллaz ̮ jaлgākā (' She treaded (? a spinning-wheel) with her foot .'), rikke̮ ke̮ik̄ pād ̮ ope̮zē̮kā (' He broke all the pots with his horse .'), se̮ve̮ttī üvī ke̮ikē̮kā (' He dressed her well with everything. '), ke̮re̮tākā paŋge̮t ̮ pihaллa (' (She holds) buckets on her shoulders with a yoke. ')
a way to do something (Used instead of essive influenced by Russian.) - e.g. e̮limma tȫzä artelīkā (' We were working in a crowd .')
Pronunciation of this comitative suffix varies according to vowel harmony-nā, -nǟ e.g. ke̮ikke̮-ina'n > ke̮ikkinā ("generally, everyone"), pe̮лve̮-ina'n > pe̮лvinā ("on knees"), naisi-ina'n > naisinā ("with wives"), ke̮ik̄ te̮ize̮t perei-nǟ tuллas̄ ("All the others come with their families.")
The final vowel of comitative suffixes may be shortened depending in it's position in a sentence " -nà, -nä̀ ".
being together with somebody - e.g. tuлe̮mma poigad ̮ naisinā (' We sons shall come with our wives .'), ke̮ik̄ te̮ize̮t pereinǟ tuллas̄ ("All the others come with their families."), te̮mpazin pū jūri-nā (' I pulled a tree out with its roots. ')
a mean to do something with - e.g. miä ve̮tan tšäsinǟ ("I'll take with my hands."), лutisap ̮ se̮rminā (' He squeezes with his fingers .')
a way to do something - e.g. ne̮isivat ̮ pe̮лvinā (' They kneeled down .'), e̮hsinā päivinǟ tōmma pū kotōsē̮ ("We shall bring the tree home with all the twigs and everything.")