The future tense of perfective verbs is formed in the same way as the present tense of imperfective verbs. However, in South Slavic languages, there may be a greater variety of forms – Bulgarian, for example, has present, past (both "imperfect" and "aorist") and future tenses, for both perfective and imperfective verbs, as well as perfect forms made with an auxiliary (see Bulgarian verbs). Finnish and Hungarian, both members of the Uralic language family, have morphological present (non-past) and past tenses. The Hungarian verb "van" ("to be") also has a future form. Turkish verbs conjugate for past, present and future, with a variety of aspects and moods. Arabic verbs have past and non-past; future can be indicated by a prefix. Korean verbs have a variety of affixed forms which can be described as representing present, past and future tenses, although they can alternatively be considered to be aspectual. Similarly, Japanese verbs are described as having present and past tenses, although they may be analysed as aspects. Chinese and many other East Asian languages generally lack inflection and are considered to be tenseless languages, although they may have aspect markers which convey certain information about time reference. For examples of languages with a greater variety of tenses, see the section on possible tenses, above. Fuller information on tense formation and usage in particular languages can be found in the articles on those languages and their grammars. Rapa is the French Polynesian language of the island of Rapa Iti. Verbs in the indigenous Old Rapa occur with a marker known as TAM which stands for tense, aspect, or mood which can be followed by directional particles or deictic particles. Of the markers there are three tense markers called: Imperfective, Progressive, and Perfective. Which simply mean, Before, Currently, and After. However, specific TAM markers and the type of deictic or directional particle that follows determine and denote different types of meanings in terms of tenses. Imperfective: denotes actions that have not occurred yet but will occur and expressed by TAM e. Example:  Progressive: Also expressed by TAM e and denotes actions that are currently happening when used with deictic na, and denotes actions that was just witnessed but still currently happening when used with deictic ra. Example:   Perfective: denotes actions that have already occurred or have finished and is marked by TAM ka.