[4] However, it seems to have substantially assimilated to the Khalkha dialect since it first was described by Sanžeev,[5] and some classificational differences seem to be due to what historical (or even ideal) state got classified.
There are both voluntatives (irrespective of number) in –ja/-ji as in Khalkha and –su for first person singular as in Oirat and Buryat, e.g. /ɡaldat͡ʃixa̯ja̯/[15] ‘let’s burn it’ and ɔrsu 'I shall enter', but the latter form is rare.
The other, fairly unremarkable modal verbal suffixes are the imperative, prescriptive, optative and dubitative.
There is a fifth suffix, /-t͡ʃɔ/ (possibly from ⟨-ǰu orkiǰuqui⟩), probably expressing some kind of perfect aspect meaning, that is peculiar to Darkhad, e.g. /jawult͡ʃɔ/ ‘has sent’.
The converbs are not very particular, but the earliest texts of Darkhad still have a conditional /-wa̯s/ (as in Buryat and Middle Mongolian) next to /-wa̯l/.