While all nouns have a regular ending for the six locative cases, many have a preferred irregular short 
illative form.  short 
illative is
Kaynak: Locative caseillative : dialectal:  allative : reduced to adverbs:  adessive  † Lithuanian has two main grammatical number s: singular  and plural .
Kaynak: Lithuanian declension The possessive suffix follows the instrumental, inessive, 
illative, elative egressive, terminative and prolative cases and the vowel
Kaynak: Udmurt grammarSingular 
illative has a short form in some words.  It can take the following endings: -de, -he, -hu, -a, -e, -i, -u.  In case it takes the
Kaynak: Estonian grammarnominative , genitive , partitive , 
illative , inessive , elative , allative , adessive , ablative , translative , terminative , essive ,
Kaynak: Estonian language(The symbol "V" in the 
illative case denotes an epenthetic vowel , which is the preceding vowel in Finnish, e.g.  tie → tiehen, and the -h-
Kaynak: Finnish locative systemFor some nouns, there are two forms of the 
illative: the regular suffix -sse (e.g.  keelesse), added to the genitive  stem, and an
Kaynak: Estonian locative systemIllative : The 
illative  marker actually has three different markers in the singular to represent the same case: -a, -e and -u.
Kaynak: Skolt Sami language Akkala Sami has 8 cases , singular and plural : nominative , genitive -accusative , partitive , dative -
illative , locative , essive ,
Kaynak: Akkala Sami languageThe 
illative is used to state where something is going.  Lative  The lative is used to express into what something is going. |!
Kaynak: Mari languageThe Swedish kommer att -future tense is an example, being translated to tulla + noun in 
illative case , e.g.  talo tullaan rakentamaan
Kaynak: SveticismIllative : The 
illative  marker is -j in the singular and -da in the plural, which is preceded by the plural marker -i, making it look the
Kaynak: Lule Sami language