11. Quotative ( relative ) follows the same agglutinative pattern. 12. Prefixes and suffixes are numerous, partly because Korean is an agglutinative language. 13. It has agglutinative verbal morphology, with extensive suppletion. 14. The Ongan languages are agglutinative , with an extensive prefix and suffix system. 15. The Siouan languages he considered " mildly polysynthetic " and agglutinative -fusional. 16. Sona is an agglutinative language with a strong tendency towards being an isolating language. 17. Slavic languages are not considered agglutinative but fusional. 18. However, extreme derivations similar to ones found in typical agglutinative languages do exist. 19. The Andamanese languages are agglutinative languages, with an extensive prefix and suffix system. 20. Words formed as a result of the agglutinative process are often difficult to translate.