Basic Grammar:

Sevelian follows a fairly strict SOV word order. Modifiers follow what they modify, so Noun - GEN/POSS, verb - ADV. Gerunds are very common, taking an -itz- infix and declining as -a nouns. Note: definiteness is marked by -s after case markings, in possessive singulars it assimilates to -š. But note that -iš is also an adverbial marker. Also note that instrumental is a multipurpose case, it can signify cause, agent, and some temporal clauses as well as comitative.

The noun declensions (incomplete but enough)

Note that accusatives are always marked by palatalization.

There are a huge number of verb forms but you really only need a few.
Progressives are marked by the -in- infix (Izmen-in-á)
Prefix azi- signifies gnomic aspect

Sevelian makes extensive use of participles/gerunds, which are fully declinable.