The basic word order is subject–object–verb, like Latin and Japanese. Like other Niger–Congo languages, it has a noun class system, with nouns classified according to five different classes, which also affects pronouns, adjectives and copulas. The phonology features a distinction between the length of vowels and whether they are oral or nasal (as in French or Portuguese). There are also three distinct tones, a feature shared with the other Senufo languages. Nafaanra grammar features both tense and aspect which are marked with particles. Numbers are mainly formed by adding cardinal numbers to the number 5 and by multiplying the numbers 10, 20 and 100.