This study investigated whether Korean children follow the acquisition pattern predicted by the Aspect Hypothesis (Shirai & Andersen, 1995), and the relationship between caretakers’ and children’s speech. Accordingly, we analyzed a Korean corpus (Ryu-Corpus) on the CHILDES database (MacWhinney, 2000), which comprised longitudinal video-recorded interactions of three Korean children and their caregivers. Results indicate that the children used the past marker -ess principally with telic verbs, consistent with the Aspect Hypothesis. Each child’s usage closely reflects the caretaker’s frequency, yielding a high correlation (τb = 0.79). However, the acquisition of the imperfective marker -ko iss did not show a predicted association with activity verbs, contrary to the Aspect Hypothesis. Furthermore, caretakers’ input did not correlate with the children’s utterances of the imperfective marker (τb = 0.40). We argue that multiple factors such as input frequency, language-specific organization of aspectual semantics, and individual differences should be considered to explain tense-aspect acquisition.

本研究调查了韩国儿童是否遵循方面假设（Shirai & Andersen，1995）预测的习得模式，以及看护者和儿童言语之间的关系。因此，我们分析了 CHILDES 数据库（MacWhinney，2000）上的韩国语料库（Ryu-Corpus），其中包含三个韩国儿童及其照顾者的纵向视频记录互动。结果表明，孩子们主要将过去标记-ess与目的动词一起使用，这与体假设一致。每个孩子的使用情况密切反映了看护者的频率，产生了很高的相关性 (τ b = 0.79)。然而，未完成标记的习得 - ko iss并没有显示出与活动动词的预测关联，这与方面假设相反。此外，看护者的输入与孩子们对不完美标记的话语不相关（τ b = 0.40）。我们认为，应该考虑多种因素来解释时态习得，例如输入频率、体语义的特定于语言的组织以及个体差异。