In Finnish the inessive case is typically formed by adding -ssa/-ssä. Estonian adds -s to the genitive stem. In Moksha -са (-sa) is added (in Erzya -со (-so)). In Hungarian, the suffixban/ben is most commonly used for inessive case, although many others, such as on/en/ön and others are also used, especially with cities.
In the Finnish language, the inessive case is considered the first (in Estonian the second) of the six locative cases, which correspond to locationalprepositions in English. The remaining five cases are:
Look up inessive case in Wiktionary, the free dictionary.
In a large part of the southwestern, south Ostrobothnian, southeastern as well as in some Tavastian dialects, the suffix is simply -s (e.g. maas, talos), similarly to Estonian. This is an example of apocope. When coupled with a possessive suffix, the result can be like in standard Finnish "maassani, talossani" or a shorter "maasani, talosani" depending on the dialect: the former is more common in Tavastian and southeastern dialects while the latter is more common in southwestern dialects.