In this study, the author identified the characteristics of delimiter use by children of four to six years old based on age and sex, according to appearance of forms and modes of use and appearance by distribution and modes of use. Frequency of appearance and number of speakers were investigated to be analyzed, and the results are as follows.
First, children of four to six years old used more enhanced delimiters when their age was higher. As for the rate of frequency of delimiter appearance and the number of speakers by ages, '-en,' '-do,' '-man,' '-dula,' '-da(ga),' '-ggaji,' '-ba-ke,' '-buteo,' '-(ei)na,' '-daero,' '-ssik,' and '-mada' (in order) were seen in both cases, and use of delimiters was more frequent when their age was higher. Second, as for the frequency of appearance of delimiters and the number of speakers by sex, '-en,' '-do,' '-man,' '-dula,' '-da(ga),' '-ggaji,' '-ba-ke,' '-buteo,' '-(ei)na,' '-daero,' '-ssik,' and '-mada' (in order) were seen in both cases. Eight such as '-en,' '-do,' '-man,' '-dula,' '-da(ga),' '-daero,' '-ssik,' and '-mada' out of the total twelve delimiters were frequent in females in the frequency of appearance, and '-en,' '-man,' '-dula,' '-da(ga),' '-buteo,' '-daero,' and '-mada' were frequent in females in the number of speakers, indicating that females generally used delimiters more frequently than males did. Third, as for modes of appearance based on distribution by sex, '-en' was highest in rate of frequency and number of speakers. When age was higher, combination with case particles, endings, and delimiters was gradually higher. Combination with adverbs was frequent in childhood of four and five years old and then declined upon reaching six years old. Four, as for distributed characteristics by age, combination with case particles, endings, and adverbs was more frequent in females than in males, while combination with noun phrases and delimiters was more frequent in males than in females.