The correct declention should correspond with the gender count and case of the noun. For example, if the sentence is: He has my dog., my should be masculine singular accusative. If you want a few hints, compare the endings with those of the nouns.

majs (my)

Masculine

	Singular:	Plural:
Nom.:	majs	majāi
Gen.:	māise	māisan
Dat.:	majasmu	māimans
Acc.:	majjan	majjans

Feminine

	Singular:	Plural:
Nom.:	majā	majjas
Gen.:	majāses	majāsan
Dat.:	majjai	majāmans
Acc.:	majjan	majjans

Neuter

	Singular:	Plural:
Nom.:	majjan	majāi
Gen.:	māise	māisan
Dat.:	majasmu	māimans
Acc.:	majjan	majans

twajs (your)

Same as majs with twa instead of ma. That makes it easy and I am not writing this out.

This is unknown, so...

tenesse = his

tenesses = her

tenese = its

tenēisan = their

For everything : (

I know it's sad, but that's what happens when reviving a dead language. But on the bright side, we already get our info from the noun, so I guess it's not that bad.

nūss (our)

Masculine

	Singular:	Plural:
Nom.:	nūss	nusāi
Gen.:	nūse	nusēisan
Dat.:	nūsmu	nusēimans
Acc.:	nūsan	nūsans

Feminine

	Singular:	Plural:
Nom.:	nūsā	nūsas
Gen.:	nūses	nusēisan
Dat.:	nūsei	nusēimans
Acc.:	nūsan	nūsans

Neuter

	Singular:	Plural:
Nom.:	nussan	nusāi
Gen.:	nūsse	nusēisan
Dat.:	nūsmu	nusēimans
Acc.:	nussan	nūsans

jūss (your pl)

Nūss with jū instead of nū