There are 3 forms of numbers of Îçlo: Adjectival Cardinal, Nominal Cardinal, and Ordinal. Nominal Cardinal numbers are used in the majority of number uses such as use as a noun or serial. Adjectival Cardinal numbers are used when the number functions as a determiner before a noun. Numbers not listed are formed by hyphenating the desired numbers together using the nominal cardinal form in the same order as in English. The only exceptions to this are for the numbers 21-99 (and all derivatives from them). With these numbers the hyphen is replaced by combining the two numbers into one. Additionally, for these numbers, when the second number starts with a vowel, the Adjectival Cardinal form is used. When the desired number is wanted as an Adjectival Cardinal or an Ordinal number, the final number after the hyphen becomes its corresponding Adjectival Cardinal/Ordinal form. E.G: 24,676 is Vingte-Quátro-Mille-Secento-Setantesei. All Nominal Cardinal numbers are masculine. Negative numbers are formed by following the noun after the number with the adjective Negativo when Adjective Cardinal or Ordinal, or by placing Negativo after the number when Nominal Cardinal. Ordinal numbers are always represented by Roman numerals (Adidi Romani). They precede the noun unless acting as a title where they are placed after and must agree with the subject in gender. Roman numerals are also commonly used outside of use as ordinal numbers such as in buildings and signs (where their usage often correlates to their ordinal usage) and also in the writing out of large numbers, where they are nearly always shown with the name of the number. Ordinal numbers can also function as nouns like most adjectives, but still must agree in gender. Ordinal numbers are also used to form fractions, much like in English.