languages, but with an agglutinative character: grammatical inflections are indicated by stringing together separate affixes for each element of meaning. Nouns Nouns inflect for case and number, but not for gender. The following is the declension of the Volapük word vol "world": As in German, the Volapük noun has four cases: nominative, genitive, dative and accusative. In compound words, the first part of the compound is usually separated from the second by the genitive termination -a, e.g. Vola-pük, "of-world language": "language of the world". However, the other case endings (-e dative, -i accusative) are sometimes used if applicable, or the roots may be agglutinated in the nominative, with no separating vowel. Adjectives and adverbs Adjectives, formed by the suffix -ik, normally follow the noun they qualify. They do not agree with the noun in number and case in that position, but do if they precede the noun, are separated from it by intervening words, or stand alone. Adverbs are formed by suffixing -o, either to the root or to the adjectival -ik (gudik "good", gudiko "well"); they normally follow the verb or adjective they modify. Pronouns The pronouns begin with o-. In the singular, they are ob "I", ol "thou", om "he/it", of "she", os (impersonal), on "one", ok "oneself". They are pluralized with -s: obs "we", ols "ye", oms "they". The possessive may be formed with either the genitive -a or with adjectival -ik: oba or obik "my". Prepositions, conjunctions and interjections are also formed from noun roots by appending appropriate suffixes. In later, reformed Volapük, om was narrowed down to males only, whereas on got the meaning of 'it' as well as impersonal 'they'. Verbs The verb carries a fine degree of detail, with morphemes marking tense, aspect, voice, person, number and (in the third person) the subject's gender. However, many of these categories are optional, and a verb can stand in an unmarked state. A Volapük verb can be conjugated in 1,584 ways (including infinitives and reflexives). Person For the simple present, the pronouns are suffixed to the verb stem: binob I am, binol thou art, etc. The present passive takes the prefix pa-: palöfons they are loved. Tense, aspect, and voice The three tenses in the indicative, and the three perfect aspects, each take a characteristic vowel prefix: The present-tense prefix is omitted in the active voice, so: binob I am, äbinol you were, ebinom he