koloniya

/kolonija/

Cases

SingularPluralWhen to use it
nominativekoloniyathe colonykoloniyalathe coloniesthe plain dictionary form — the doer of the sentence
genitivekoloniyanıthe colony'skoloniyalanıthe colonies'the owner — whose it is
accusativekoloniyanıthe colony (as the object)koloniyalanıthe colonies (as the object)a specific, known object — whom or what
dativekoloniyağato the colonykoloniyalağato the coloniesdirection or recipient — to where, to whom
locativekoloniyadaat / in the colonykoloniyaladaat / in the colonieswhere it is; also having — mende bar, "I have it"
ablativekoloniyadanfrom the colonykoloniyaladanfrom the colonieswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
mykoloniyammy colonykoloniyalarımmy colonies
yourkoloniyangyour colonykoloniyalarıngyour colonies
his / herkoloniyasıhis / her colonykoloniyalarıhis / her colonies
ourkoloniyabızour colonykoloniyalarıbızour colonies
you all'skoloniyağızyou all's colonykoloniyalarığızyou all's colonies
theirkoloniyalarıtheir colonykoloniyalarıtheir colonies

The overlap in the last rows is real, not a mistake: koloniyaları can mean "his / her colonies", "their colony", or "their colonies" — context decides.